# circle c has radius of 10 cm. each of the points B and D is on yhe midpoint of the radius. find the shaded area

26,291 results
1. ## Probability

Terminology: A circle of radius r is a curve that consists of all points at distance r from the center of the circle. A disk of radius r is the set of all points whose distance from its center is less than or equal to r . Thus, a circle is the boundary of

asked by No One on November 18, 2018
2. ## math

the number of noncollinear points needed to determine a circle Two. The location of the center, and one point on the circle (ie, the length of radius), you have determined the circle. However, the circle thus determined can be an an infinite number of

asked by sarah on October 15, 2006
3. ## Maths

1. In the xy-coordinate plane, point A is the midpoint of the segment with endpoints (2,4) and (-4,-4). What is the distance from point A to the origin? I know how to find the distance between the two points- 10. But I don't know where to go from there. 2.

asked by Lina on March 22, 2015
4. ## Calculus

Write the equations of the circle in general form. 1. Points on circle (0,0), (0,8), (6,0) 2. Points on circle (1, -1), (2, -2), (0,-2). I don't know how to solve this given the fact that I don't know what the center or the radius of the circle is.

asked by Stephanie on September 28, 2016
5. ## Pre-Calc (Circles)

Describe the conditions necessary, where circle A has a larger radius than circle B, for the two circle to have no points of intersection, while circle B is entirely in the interior of circle A.

asked by Anonymous on November 17, 2009
6. ## Geometry

Which one of these is NOT a step used when constructing an inscribed square using technology? A. Create a circle using the center with given points tool. B. Connect the points with a line through the center of the circle. C. Mark the points of intersection

asked by Amy on January 20, 2015
7. ## Pre-Calc

Describe the conditions necessary for the two circles, where circle a has a larger radius than circle b, to have no points of intersection, while each circle is entirely in the exterior of the other circle.

asked by Anonymous on November 17, 2009
8. ## maths

O is the centre of the circle and A and B are points on the circumference of the circle. The radians of the circle is 12 cm and the angle AOB is 54 degrees. Choose the one option which gives the length of the circle joining A and B , correct to one decimal

asked by katie on April 20, 2007
9. ## Math

The points (4, –5) and (– 4, 1) are endpoints of a diameter of a circle. (a) Find the center of the circle. (b) Find the length of the radius of the circle. (Note that this is a distance.) Give the exact answer. Show work. (c) State the equation of the

asked by Kate on June 24, 2009
10. ## Math

If a circle has the radius of 6 and it is at the orgin, what are seven points on the circle. I already have four and I need three more. So far I have, (6,0) (0,6) (0,-6) and (-6,0). What am I missing. I also can't write any decimals for the points, but it

asked by sammy on November 17, 2009
11. ## Algebra 2

If a circle has the radius of 6 and it is at the orgin, what are seven points on the circle. I already have four and I need three more. So far I have, (6,0) (0,6) (0,-6) and (-6,0). What am I missing. I also can't write any decimals for the points, but it

asked by sam on November 17, 2009
12. ## Math

Which describes the collection of all points in the same plane that are 8 and 1/2 inches from Point T? circle T with radius 8 and 1/ 2 inches circle T with diameter 8 and 1/2 inches circle T with radius 17 inches a sphere with center T and radius 8 and 1/2

asked by Plz Halp on August 8, 2019

Five concentric circles with radii 1, 2, 3, 4, and 5 are drawn as shown dividing the circle of radius 5 into five regions: a circle of radius 1 and 4 annuuli (rings). What is the probability that a point chosen randomly from within the circle of radius 5

asked by J on September 28, 2014
14. ## Math

Circle C has radius 4 inches. Circle D had radius 9 inches. These two circles are connected. Point A,B,and E are points of tangency. Find AB. From point C to point D(which is the radius of circle C plus the raduis of circle D) it is 13 inches. From point C

asked by Greg on April 29, 2011
15. ## geometry

Circle A has radius 6. Circle B has radius 10. They cross at two points that are 5 apart. What is the overlapping area?

asked by priyanka on February 8, 2013
16. ## Algebra

1.How do I find the center of a circle using the points (2,8) (-4,6) (1,-1) ? 2. The Radius of the circle? 3. Equation of circle THANKS!

17. ## math

ABCDE is a circle with centre O. The diameter, AC, is extended to the point F so that CF = 16 cm. The line BF is the tangent to the circle at B and FDE is a straight line such that FD = 18 cm and chord DE = 14 cm (D and E are points of intersection of the

asked by Valeriya on January 25, 2019

Write the standard form of the equation of a circle that passes through the points at (0,8) (8,0) and (16,8). Then identify the center and radius of the circle. (x-8)^2 + (y-8)^2 = 64 (x^2 / 64) + (y^2 / 64) = 64 center=(8,8) radius=8 I got it wrong don't

asked by Anonymous on April 16, 2009
19. ## Geometry

A dartboard consists of five concentric circles. The radius of the smallest circle is about 1 inch. The radius of the second circle is about 3 inches longer. The radius of the third circle is about 1 inch longer than the previous circle. The radius of the

asked by Sholanda on May 16, 2012
20. ## Algebra

Suppose a circle is centered at the vertex (0,0) and has a radius of length 4. For which points on the circle is the x-coordinate equal to 1? Your first answer should have a positive y-value. For which points on the circle is the x-coordinate equal to 3?

asked by John on February 11, 2016
21. ## College Algebra

using the knowledge of systems of equations, and that the equation of a circle is (x-h)^2 + (y-k)^2 = r^2, where (h,k) is the center and r is the radius. Find the equation of a circle that contains the following points: (6,2), (4,6), and (-3,5). (These 3

asked by Kevin on December 15, 2011
22. ## College Algebra

using the knowledge of systems of equations, and that the equation of a circle is (x-h)^2 + (y-k)^2 = r^2, where (h,k) is the center and r is the radius. Find the equation of a circle that contains the following points: (6,2), (4,6), and (-3,5). (These 3

asked by Kevin on December 15, 2011
23. ## Math (urgent)

the equation x^2+y^=25 describes a circle with center at the origin and radius 5. The line y=x-1 passes through the circle. Using the substitution method, find the points at which the circle and line intersect. a) (4,3) and (-4,-3) b) (3,4) and (-3,-4) c)

asked by Max on September 7, 2016
24. ## Algebra

The area of a circle is given by the formula A+pier^2, where r is the radius. If increasing the radius of a circle by 1 inch gives the resulting circle an area of 100pie square inches, what is the radius of the original circle?

asked by Savannah on March 12, 2012
25. ## math

The area of a circle is given by the formula A = ðr2, where r is the radius. If increasing the radius of a circle by 1 inch gives the resulting circle an area of 100ð square inches, what is the radius of the original circle?

asked by Anna on March 26, 2015
26. ## math

find the area of each circle. round to the nearest tenth.use 3.14or 22/7. 1.circle with 6cm 2.circle with 25in 3.circle with 11ft 4.diameter =10.5 5.radius=6.3mm 6.radius=31/4 yd

asked by jaiden on December 18, 2019
27. ## math

A radius of a circle has end points at O(-1,3) and R(2,2). find two possible end points for the diameter that contains this radius. describe any assumptions you make.

asked by Ted on October 18, 2010
28. ## math

A radius of a circle has end points at O(-1,3) and R(2,2). find two possible end points for the diameter that contains this radius. describe any assumptions you make.

asked by Ted on October 18, 2010
29. ## Analytic Geometry - lengths?

Square ABCD has sides of length 4, and M is the midpoint of CD . A circle with radius 2 and center intersects a circle with radius 4 and center A at points P and D . What is the distance from P to AD? Please help - I drew the diagram, but looks kinda

asked by Knights on April 4, 2013
30. ## Math

Write the standard for of the equation of the circle that passes through the points at (0,8),(8,0),and (16,8). Then identify the center and radius of the circle.

asked by Sally on July 2, 2009
31. ## pre calc

EAch of 3 circles touch the other 2. Circle A=radius 8cm Circle B=radius 4cm Circle c=radius 1cm A triangle is formed by connecting the centers of the 3 traingles. Determine the largest angle for the traingle and which circle is the largest angle? Also

asked by jim on December 8, 2011
32. ## Geometry

Arc DE has a length of ð(pie), and the straight line distance between points D and E is equal to the radius of the circle. What is the area of the circle?

asked by Anonymous on September 17, 2013
33. ## Maths Help

A,B,C,D,E,F are 6 consecutive points on the circumference of a circle such that AB=BC=CD=10,DE=EF=FA=22. If the radius of the circle is √n, what is the value of n?

34. ## Math

A,B,C,D,E,F are 6 consecutive points on the circumference of a circle such that AB=BC=CD=10,DE=EF=FA=22. If the radius of the circle is √n, what is the value of n?

35. ## Math

Circle O is centered at the origin and has a radius of 5. Circle O' is the image of circle O after a translation of T1,2. What is the center of circle O'? What is the radius of circle O'?

asked by Collin on March 3, 2010
36. ## math

X1, X2,...,X9 are nine points on the circumference of circle O. Line segments are drawn connecting each pair of points. What is the largest number of different points inside the circle at which at least two of these line segments intersect? (Remember that

asked by AWESOMMEEE on April 14, 2016

A circle has the equation x^2+y^2-4x+6y-12=0 and i have already found that the centre has a coordinate of (2,-3), and a radius of 5 units. But i need to find points on the circle that has the gradient of -4/3 when a tangent is drawn on the point. How do i

asked by Marrion on September 26, 2009
38. ## geometry

Square ABCD and circle T have equal areas and share the same center O.The circle intersects side AB at points E and F.Given that EF=√(1600-400π),what is the radius of T ?

asked by The Boss on March 12, 2013
39. ## Math

I have a question my brother asked me but I need a math expert. You have two interlocking circles and the radius of circle B goes through the center of circle A and of course the radius of circle A goes through the center of circle B. The radius of each

asked by DrBob222 on June 25, 2013
40. ## Geometry

Suppose that line t is tangent to circle center O and radius OP at point P and that secant l, which is parallel to t, intersects circle at the two points A and B. Prove chords AB and BP are congruent

asked by TM on April 21, 2011
41. ## Geomatric series

A fractal is created: A circle is drawn with radius 8 cm. Another circle is drawn with half the radius of the previous circle. The new circle is tangent to the previous circle. Suppose this pattern continues through five steps. What is the sum of the areas

asked by HanuMath25/11 on November 25, 2012
42. ## solid mensuration

circle c has radius of 10 cm. each of the points B and D is on yhe midpoint of the radius. find the shaded area.

asked by hanah on July 6, 2011
43. ## analytical geometry

the points M(6,-8) and E(8,6) are on a circle with radius 10 units. Determine the equation of the line equidistant from points M and E

asked by Priya on January 24, 2012
44. ## Math

Γ 1 is a circle with center O 1 and radius R 1 , Γ 2 is a circle with center O 2 and radius R 2 , and R 2

asked by best on June 18, 2013
45. ## Math

1. Points Q,R,S, and T lie on a circle with center P. If the radius of the circle is 1, what is the value of PQ+PR+PS+PT? 2. If 10^ab= 10,000, where a and b are positive integers, what is one possible value of a? 3. In the plane, the line 2x-3y=c passes

asked by Leslie on November 5, 2010
46. ## math

Five points lie in the same plane with no three points on the same line. A circle can be drawn through any three of the five points. What is the total number of different circle that can be drawn such that each circle passes through three of the five

asked by jennifer on July 25, 2014
47. ## Geometry

Write the General form equations for the following circles: 1. A circle with center (1, -6) and radius 4 2. A circle with center (6, 8) and radius 10 3. A circle with center (0, 3) and radius 2√3 4. A circle with center (-0.5, 5.5 ) and radius 8.4 5. A

asked by Its me again on June 13, 2017
48. ## PHYSICS

A bucket is swung on a rope in a vertical circle as shown in the diagram below. The bucket has a mass of 1.5 kg, the radius of circular motion is 1.2 m, and it is being spun at a rate of 45 revolutions per min (RPM) what is the tension of the rope at

asked by Anonymous on January 20, 2011
49. ## geometry

In the diagram, circle A is tangent to circle C, and segment BE is tangent to circle A. The radius of circle A is 11 meters and the radius of circle C is 8 meters. Find the area of triangle ABE to the nearest square meter.

asked by joe on April 4, 2013
50. ## Computer Science (Basics)

public class Circumference { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub ; final double PI = 3.14159; int radius = 10; double area = PI * radius *radius; double circum = 2 * PI * radius;

asked by Mike on September 14, 2008
51. ## Calculus--complex numbers

let z= a+bi be a complex number. it is given that the quotient (z-i)/(z-1) is purely imaginary. show that z lies on a circle and determine the centre and radius of this circle. OK, here's my working out...( i am using "X" as my times symbol) step1:

asked by Anne on March 12, 2008
52. ## calculus

There is a shape first a regular triangle inscribed in a circle, and inscribed in a square, inscribed in a circle, inscribed in a pentagon, etc. so polygon circle polygon circle, etc. the radius of the first circle is 1, find an equation for radius n.

asked by Andre on February 22, 2016
53. ## triggg

Suppose a circle has a radius of 4.5 inches. If you double the radius of the circle, does the area of the circle double as well? What happens to the circle’s circumference? Explain and justify your reasoning.

asked by cheyanne marie on March 28, 2012
54. ## Math 7 - NYS Math Exam Review Help!

19. The circumference of the circle below is 25.12 centimeters ***** There is a circle and then there is a line and written radius C = 2(pi)r Which is the best estimate for the length of the radius of the circle? a) 3 cm b) 4 cm c) 8 cm d) 16 cm please

asked by Laruen on April 15, 2012

A,B,C,D,E,F are 6 consecutive points on the circumference of a circle such that AB=BC=CD=10,DE=EF=FA=22. If the radius of the circle is √n, what is the value of n? Details and assumptions: -The lengths given are side lengths, not arcs.

asked by fudgee on May 7, 2013
56. ## physics

A circle with a radius of R is inscribed in a square. On the corner of the square are point charges of +q, +q, -q, and +q. On the circle are charges of +2q, +2q, -q, and +q. (See sketch.) If q = 4.8 micro-coulombs, and the total potential at the center of

asked by Mandaleigh on February 10, 2012
57. ## Equations of a Circle

Write the standard for of the equation of the circle that passes through the points at (0,8),(8,0),and (16,8). Then identify the center and radius of the circle. I have r=8, center=(8,8). What now?

asked by Some1 Help Me Plz on April 21, 2012
58. ## geometry

In a circle with centre P,a chord AB is parallel to a tangent & inersects the radius drawn from a point of contact at the midpoint of the radius .If AB=12,FIND THE RADIUS OF THE CIRCLE.

asked by Mahek on July 14, 2011
59. ## math gre question

in an infinite series of circles the radius of the second circle is one half the radius of the first circle and the radius of the third circle is one half the radius of the second circle. if the first circle has a radius of one inch which of the following

asked by luckybee on January 8, 2012
60. ## Geometry

Segment AD is perpendicular to the radius of circle (B) and the radius of circle (c). If radius BA=6in, segment AD=21in and radius CD=16in, find the length of BC to the nearest tenth of an inch.

asked by Ben on May 10, 2016
61. ## pre calc

each of three circles touches the other 2.circle A has a radius of 8 cm. circle B has a radius of 4 cm.circle C has a radius of 1 cm.a triangle is formed by connecting the centers of the 3 triangles. determine the largest angle for the triangle and in

asked by bob on December 8, 2011

The radius of circle M is 3 times the radius of circle P. If the area of circle P is abotu 27 sq. cm. the area of circle M is about what? (Use 3 as pie) i don't get it. is the scale ratio 3:1?

asked by brianna on January 5, 2009
63. ## maths

Γ 1 is a circle with center O 1 and radius R 1 , Γ 2 is a circle with center O 2 and radius R 2 , and R 2

asked by best on June 18, 2013
64. ## math

how do i get the area of a circle????????????? area of a circle=pi * radius * radius huh what huh radius is the measuremnt from the center of the circule so Pi also known as 3.14 multiplyed by radius squared or known as radius times radius

asked by chemiii on October 26, 2006
65. ## Math

One medium circle and one small circle touch each other, and each circle touches the larger circle. The figure shows two circles of different radius inscribed in a larger circle. The two circles are drawn such that both touch the circle as well as each

asked by Lamma Land on August 16, 2019
66. ## maths

please help im quite stuck with this question a boat sails in a straight line, its position at time t is (-t+600,2t-300). a man stands on a small island, at position (200,100). due to fog, he can see objects of radius 200m centred at his position. a) find

asked by braidy on May 21, 2007
67. ## Math

In two concentric circles, a chord of length 8cm of the larger circle touches the smaller circle . If the radius of the larger circle is 5cm then find the radius of the smaller circle.

asked by Avni on March 27, 2018
68. ## geometry maths

a circle of radius 1 is inscribed in a square. A smaller circle is tangent to two sides of the square and the first circle. Determine the radius of smaller circle and larger circle

69. ## Algebra

The Circumference and area of a circle of radius r are givin by 2 [pie] r and [pie] r, respectively use 3.14 for the constant [pie] A. What is the circumference of a circle with a radius of 2 m? B.What is the area of a circle with a radius of 2 m? C.

asked by Jordan on September 17, 2007
70. ## MATH

An annulus is a ring bounded by two concentric circles. In annulus A has an inner circle of radius 2 cm and an outer circle of radius 6 cm. Annulus B has an outer circle of radius 9 cm. If annulus B has an area equal to that of annulus A, what is the

asked by Dam on October 8, 2018
71. ## calculus

a circle of radius 1 rolls around the outside of a circle of radius 2 without slipping. the curve traced by a point on the circumfarence of the smaller circle is callled an epicycloid. use the angle theta to find a set of parametric equations for this

asked by Nancy on May 11, 2010
72. ## calculus

a circle of radius 1 rolls around the outside of a circle of radius 2 without slipping. the curve traced by a point on the circumfarence of the smaller circle is callled an epicycloid. use the angle theta to find a set of parametric equations for this

asked by Nancy on May 12, 2010
73. ## Check!!!

okay so the question is: A unit circle center at the origin undergoes a series of transformations. The equation of the resulting graph is (x-3)^2+ (y+4)^2= 25 describe the transformation the unit circle underwnt Answer: The original circle was centered at

asked by math on February 14, 2007

HELP ME PLEASE. 1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that

asked by BARBIE LEE on December 8, 2013
75. ## GEOMETRY CIRCLE

1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that pq is tangent to

asked by BARBIE LEE on December 8, 2013
76. ## Math

A circle with a 4-inch radius is centered at A, and a circle with a 9-inch radius is centered at B, where A and B are 13 inches apart. There is a segment that is tangent to the small circle at P and to the large circle at Q. It is a common external tangent

asked by Matty on April 30, 2017
77. ## mathematics

The circle x2-2x+y2-4y-4=0 lies on the cartesian plane,question 2.1.1 equation of new circle which is the rotation of original circle through 180 degree around the origin...2.1.2 find equation of another circle which is the translation (x;y)-(x-8;y-6) of

asked by Jossie on March 21, 2013
78. ## math

HELP!! the area A of the circle in the figure can be represented by A(r)=pi,r^2 where r is the radius what are the resonable domain and range for each function? explain the problme before this made me make a equation of B(r)=5^2-pi,r^2 im not sure if there

asked by paul on November 3, 2010
79. ## math

If x,y,p,q are points on the circle with radius 6 and xp=yq what is pq? I think the answer is cannot be determined Thanks.

asked by kris on December 3, 2012
80. ## Physics

you measure the diameter of a circle then you calculate the radius of the circle using this diameter. (1) Which one has a greater uncertainty, the diameter or the radius? Why? you measure the radius of a circle then you calculate the diameter of the circle

asked by Denji on June 29, 2012
81. ## Math

Two perpendicular diamters(cutting each other at right angles) of a circle cut the circumference at four(4) points. A square is formed by joining the 4 points. If the circumference of the circle is 132cm, find the area of the square. so right here they

asked by Cindy on April 13, 2007

1.An isosceles triangle with each leg measuring 13 cm is inscribed in a circle . if the altitude to the base is 12 cm find the radius of the circle 2. Circles a and b are tangent at point c. p is on circle a and q is on circle b such that pq is tangent to

asked by BARBIE LEE on December 7, 2013
83. ## Science

The diagram below shows four coastline locations on Earth with respect to the moon at a given time. Earth is shown as a circle with a smaller circle labeled Moon above it. Points A and C are marked at the top and bottom ends of the circle representing

84. ## algebra 1...urgent

a high school wrestling mat must be square with 38-foot sides and contain two circles as shown. suppose the inner circle has a radius of "s" feet and the outer circle's radius is nine feet longer than the inner circle. *write an expression for the area of

asked by trixie on March 5, 2008
85. ## algebra 1

a high school wrestling mat must be square with 38-foot sides and contain two circles as shown. suppose the inner circle has a radius of "s" feet and the outer circle's radius is nine feet longer than the inner circle. *write an expression for the area of

asked by trixie on March 5, 2008
86. ## math

A segment with endpoints C(-3, 3)and D(7, 3) is the diameter of a circle. a. What is the center of the circle? b. What is the length of the radius? c. What is the circumference of the circle? d. What is the equation of the circle?

asked by Joshua on March 21, 2018
87. ## calculus I

Problem: Consider (1) the parabola y=3-1/10 x^2 and (2) the upper half of the circle centered at (20, 0) with radius of 10. Find the points on the parabola where the tangent line is also tangent to the upper half of the circle. (You can find these points

asked by Anglela on March 2, 2017
88. ## Algebra II

Find the radius and center of the circle which passes through the points (-2,3), (0,-3), (4,-3).

89. ## algebra

Which of the following points lies on the circle whose center is at the origin and whose radius is 10 (-6,4) (/10,/10) (6,-8)

asked by steven on November 21, 2014
90. ## algebra 1

A high school wrestling mat must be a square with 38-foot sides and contain 2 circles. Suppose the inner circle has a radius of s feet, and the outer circle's radius is 9 feet longer than the inner circle. What is an expression for the area of the square

asked by Jenny on March 5, 2008
91. ## geometry

n the xy -plane, the graph of y = x^2 and the circle with center (0,1) and radius 3 have how many points of intersection?

asked by naomie on April 2, 2013
92. ## math

n the xy -plane, the graph of y = x^2 and the circle with center (0,1) and radius 3 have how many points of intersection?

asked by naomie on April 1, 2013
93. ## Geometry

A circle with center O has a radius of 4 feet. Points A and B are placed on the circle so that . Find the length of the intercepted . Use 3.14 for , and round your answer to the nearest tenth. A. 1.1 feet B. 1.2 feet C. 1.4 feet D. 2.1 feet

asked by Melody on December 15, 2016
94. ## math

A sector of a circle subtending an angle 300 degrees at the centre is used to form a cone with base radius 6cm. Find the (a.)radius of the circle (b.)volume of the cone (c.)area of the minor sector of the circle

asked by shegster on April 30, 2014
95. ## Math

What is the approximate circumference of a circle with a radius of 6 centimeters? A.12 B.18 C.24 D.36 My teacher says it's D and I agree but for the next question he says it's 12 and aren't these two questions the same? What is the circumference of the

asked by Jerald on March 25, 2013
96. ## Math

Find the perimeter of a regular 360-sided polygon that is inscribed in a circle of radius 5 inches. If someone did not remember the formula for the circumference of a circle, how could that person use a calculator’s trigonometric functions to find the

asked by Matty on April 27, 2017
97. ## Math rem

2.Find the length of the arc in a circle if the radius of the circle is 24cm and the degree of the arc is 90o 3.Find the length of the arc if a circle if the degree if the arc is 120o and the length of the radius is 8cm. 4. A circle has a radius of 7. Find

asked by bs on February 11, 2013
98. ## Math

In the diagram, AE¯¯¯¯¯¯¯¯ is tangent to the circle at point A, and secant DE¯¯¯¯¯¯¯¯ intersects the circle at points C and D. The lines intersect outside the circle at point E. A circle with no center shown. Points A, C, and D lie on the

asked by nini on January 31, 2020
99. ## Math

In the xy-plane, the graph of y=x^2 y=x2and the circle with center (0,2) and radius 2 have how many points of intersection?

asked by AKS on May 10, 2017
100. ## Algebra 2

Find the exact coordinates of the points on a circle of radius 12.5 at an angle of 180°

asked by Lia on March 29, 2017