This one is confusing me. please help The diameter of a circle has endpoints P(–10, –2) and Q(4, 6).Find the center of the circle.Find the radius. If your answer is not an integer, express it in radical form. Write an
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geometry
This one is confusing me. please help The diameter of a circle has endpoints P(–10, –2) and Q(4, 6).Find the center of the circle.Find the radius. If your answer is not an integer, express it in radical form. Write an equation for the circle. Thanks 
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 circle (in standard ... 
GEOMETRY
The diameter of a circle has endpoints P(–10, –2) and Q(4, 6). a.Find the center of the circle. b.Find the radius. If your answer is not an integer, express it in radical form. c.Write an equation for the circle. 
geomtry
A diameter of a circle has endpoints P(10,2) and Q(4,6) a. find the center of the circle. b. find the radius of your answer is not an interger express in radical form c. write an equation for the circle 
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? 
Geometry midpoint formula
A circle on the Coordinate plane has a diameter with endpoints at (6,8) and (15,8). What are the coordinates of the center of the circle? What is the radius of the circle? Identify the coordinates of another point on the circle. Explain how you found your answer. 
Math
Find the center and the radius of the circle which (6,2) and (4,4)are endpoints of a diameter. Please help! 
Calculus
Points (–1, 6) and (–3, 2) are endpoints of the diameter of a circle. (a) What is the exact length of the diameter? (Simplify as much as possible) Answer: ________ (b) What is the center of the circle? Answer: ____________ (c) What is the equation of the circle? Answer: ... 
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 planes (not just in the ... 
Math
The points (4, –5) and (– 4, 1) are endpoints of a diameter of a circle. Find the center of the circle. 
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 both circles. Given ... 
maths
1) Circle centre (7,2) passes through (2,10). Calculate radius and find equation of circle. 2) AB is diameter of circle A(9,5) B(1,7). Find equation of circle mid point. I know i have to use the eqn (x1+x2)/2 and (y1+y2)/2 3) Find the equation of circle with centre (8,5... 
GEOMETRY CIRCLES PLEASE
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 pq is tangent to both ... 
Maths
1. In the xycoordinate 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. The radius of circle... 
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 using this radius. (... 
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 circle with center (a... 
geometry
2. For the circle with equation (x – 2)2 + (y + 3)2 = 9, answer each question: a) What are the coordinates of the center? none b) What are the radius and diameter of the circle? 360 c) Graph the circle. 
algebra
1)Write an equation for the parabola with focus (1,3)and vertex(0,3) answer= x= 1/4(y3)^2 2)Write an equation for a circle if the endpoints of a diameter are at (1,1)and(1,9) answer= (x1)^2+(y+4)^2=25 3)Which is the equation of a circle with center (0,1)and radius 2 units? ... 
math
Line AB is the diameter of circle C. If the endpoints of the diameter are A(3, 4) and B(2, 5), what are the coordinates of the center of the circle C? I've forgotten how to do this, heh heh... help please? 
geometry
Name the diameter, radius, center, and the equation of the circle with a diameter that has endpoints at (3, 4) and (5, 2). 
math
A circle has an area of 25 pi cm^2.If a circle is drawn within that circle with a diameter equal to the radius of the first circle, what is the area of the second circle? a. 2 1/2 pi cm^2 b. 4 1/4 pi cm^2 c. 5 1/4 pi cm^2 d. 6 1/4 pi cm^2 e. 7 1/2 pi cm^2 please answer and ... 
math
Let the equation of a circle be x^2+y^214x+8y+56 a. Find the standard form of the circle b. Find the center of the circle c. Find the radius of the circle 
GEOMETRY CIRCLES 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 pq is tangent to both circles. Given ... 
Geometry
How would you solve these? The radius of a circle is 34 meters long, and a chord of the circle is 60 meters long. How far is the chord from the center of the circle? The diameter of a circle is 60 inches and a chord of the circle is 48 inches long. How far is the chord from ... 
Mirielle
The endpoints of the diameter of a circle are (6,2) and (10,2). What are the coordinate of the center of the circle? 
geometry
a circle has diameter endpoints of A(5,10) and B(3,4). what are the coordinates of the center of the circle 
math
A diameter of circle that has endpoints (4,12) and (8,2), as shown below, is in the standard (x,y) coordinate plane. What point is the center of the circle? Explain 
Math: Geometry and Measurement
Find the area of each circle shown below. Also please tell me how to do it, and no false info please:) The image shows a) a circle with the diameter of 20 cm and b) a circle with the radius of 7 m. 
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 the diameter (D) and... 
math
The endpoints of the diameter of a circle are A(1,1) and B(0.5,3). calculate the radius of the circle. 
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 circle is 30 feet. Now... 
Geometry
The endpoints of a diameter of a circle are A(2,1) and B(5,5. Find the area of the circle in terms of pi. 
Geometry
The endpoints of a diameter on a circle are a(2,1)and B(5,5). Find the area of the circle in terms of 3.14. 
summer math hw
one circle has a diameter of 10 inches. a second circle has a diameter that is twice the diameter of the first circle What is the ratio of the area of the smaller circle to the larger circle 
NEED MAJOR HELP! *QUADRATIC EQUATIONS*
Write the equation for the circle with center at ( 8,  6) and radius of 10. (x+8)² + (y + 6)² = 10 (x+8)² + (y + 6)² = 100 (x8)² + (y  6)² = 100 Find the standard equation for the circle with center on the positive xaxis and passing through the origin with radius of... 
math
if A (2, 1) and B (4,7) are endpoints of a diameter of a circle, what is the area of the circle? a)16pi b) 17pi c) 18pi d)144pi e)1156pi Plot the two points and join 'em with a line. Now plot another point C (4, 1). And then simply run a line from B down to the new point and... 
MATH HELP PLEASE
You are given two different circles. The diameter of the first circle is the radius of the second circle. What is the ratio of the area of the larger circle to the area of the smaller circle. Your answer should be in the form of a simplified fraction. I have no idea where to ... 
calculuscan someone please help me with this ques
I can get part of the answer then I get stumped. find the center and radius of the circle, Write the standard form of the equation. (4,3)(1,3) to get center: (1+4/2, 3+3/2)=5/2,3 answer:5/2,3 for center radius: then i am stuck 
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'? 
Precalculus
A line segment has endpoints A=(1,3) and B=(13,19). a) Find the equation of the circle for which the segment AB is a diameter. Ans: (x  7)^2 + (y  11)^2 = 100 b) Accurate to the nearest tenth, the circumference of this circle is _______ ? I was able to find a)the equation ... 
Math
The center of a circle is A(3,3) an B(1,6) is in the circle. Find the area of the circle in terms of pi. a^2 + b^2 = c^2 radius is 5 and 25pi 
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! 
Please help with circle tangents geometry
Two circles of different sizes are tangent at T. A is on the smaller circle, whereas B is on the larger one. Also, segment CD is tangent to the smaller circle, and crosses the goes through the larger circle and hits the other side at D. TD is a diameter, and AB  CD. If the ... 
math
Find the area of the partial circle, use 22/7 for pi. 1.) radius = 27 cm find the area of 1/5 of the circle 2.) diameter = 29 ft find the area of 1/3 of the circle. Help!! Please!! Thanks!! :D 
Geometry
The endpoints of the diameter of a circle are at (1, 2) and (7, 6). What is the circumference of the circle, to the nearest tenth of a unit? 15.7 31.4 62.8 78.5 Please help? 
math
The number of square units in the area of circle P is equal to the number of units in the circumference of circle P. Assuming that the diameter of the circle must be greater than P, what is the radius of circle P ? a. 2 b. 2 pi c. 4 d. 4 pi e. cannot be determined from the ... 
Math(Please check)
Find the center (h,k) and radius of the following circle. x^2 + y^2  6x  2y + 1 = 0 My answer is center= (3,1) and radius of 1. Am I correct? 
calc
standard equation of circle concentric with X^2+Y^22X8Y+1=0 and tangent to line 2XY=3 Complete the squares to find the center of the circle. X^2+Y^22X8Y+1=0 (x1)^2+(y4)^2  16 =0 The center is (1,4) and the radius for the given circle is 4. Now find the distance from (1... 
Math
A circle with center O has a diameter of 14 feet. Points M and N are placed on the circle so that M<mon . Find the length of the intercepted MN. Use 3.14 for , and round your answer to the nearest tenth. A. 16.5 ft B. 18.2 ft C. 20.4 ft D. 33 ft 
Math
The equation 2x^2+2y^2+x+4y+2c=0 represents a circle.(let's name it S1) 1)Find the values of a,b and and show that c<(17/16) 2)For positive integers of c,if the above circle is divided into two by, (x+p)^2=p^2 circle,find the value of the constant p. 1)I know that the ... 
Circle geometry
Please help Explain how I figure this out. A circle has diameter 70cm. A chord in the circle is 50cm long. How far is the chord from the center of the circle? I have been stuck on this for days. I appreciate any help. Thank you!! 
Math  Equation of the circle
Find an equation of the circle whose endpoints of a diameter are (−3,6) and (5,−14). I tried to figure it out, but I'm not sure if my answer is correct. I got.. (x2)^2 + (y + 4)^2 = 116 Any help would be great. Thank you! 
physics
A thin nonconducting rod is bent to form the arc of a circle of radius a and subtends an angle at the center of the circle. A total charge q is spread uniformly along its length. Find the electric field at the center of the circle in term of, a, q, and angle. 
science
A thin nonconducting rod is bent to form the arc of a circle of radius a and subtends an angle at the center of the circle. A total charge q is spread uniformly along its length. Find the electric field at the center of the circle in term of, a, q, and angle. 
algebra
1)What is the distance between the museum and sailing club.I cant post the graph or anything but I have my numbers right its 53 but I used the distance formula so its either 53 units or the square root of 53 units. 2)Write the equation of the parabola y= 4x^28x+1 in standard ... 
Geometry
1. Find the diameter of a circle with a circumference of 50 mm. Round your answer to the nearest tenth. a) 16.0 mm b) 26.4 mm c) 8.4 mm d) 33.5 mm 2. Find the area of the circle with the given radius or diameter. Round your answer to the nearest tenth. Diameter = 42.0 mm a) ... 
Math
3.)Find the diameter of a circle with a circumference of 50 mm. Round your answer to the nearest tenth. A.)16.0 mm B.)26.4 mm C.)8.4 mm d.) 33.5 mm 4.)Find the area of the circle with the given radius or diameter. Round your answer to the nearest tenth. Diameter = 42.0 mm a) ... 
Find the center (h,k) and radius
Find the center (h,k) and radius r of the circle and then use these to (a) graph the circle and (b) find the intercepts, if any. 3x^2+36x+3y^2=0 
geometry
suppose the diameter of a circle is 20in. long and a chord is 16in. long. What is the distance from the center of the circle to the chord Draw a radius from the center to the end of the chord. THe draw a radius from the center perpendicular to the chord. You have a right ... 
Math
Let A, C be the endpoints of the diameter of a circle and B an arbitrary point on the circle. Using the slopes of secant lines show that \ABC is a right angle. You can assume the circle is centered at the origin. 
Plz Check my Geometry(sOo0n)
Out of 31 questions these are ones I struggled with. after the = sign is what I think the answer( except for #4, I don't know what to do at all), is so if I'm wrong can someone correct it with an explanation/formula with it please? 1.) Find the area of the parallelogram. ( ... 
Plz Check my Geometry(sOo0n)
Out of 31 questions these are ones I struggled with. after the = sign is what I think the answer( except for #4, I don't know what to do at all), is so if I'm wrong can someone correct it with an explanation/formula with it please? 1.) Find the area of the parallelogram. ( ... 
circle
two parallel chords of length 30 cm and 16 cm are draw on the opposite sides of center of a circle of radius 17 cm find the distance between the chord answer 
Algebra
Points A(3,5) and B(7,10) are the endpoints of a diameter of a circle graphed in a coordinate plane. How many square units are in the area of the circle? Express your answer in terms of pi. 
equation for circle
find the equation of a circle. the endpoints of the diameter of a circle are (3,2) and (7,6). 
Geometry
Prove that the tangents to a circle at the endpoints of a diameter are parallel. State what is given, what is to be proved, and your plan of proof. Then write a twocolumn proof. Hint draw a DIAGRAM with the points labeled. Can some one please check for me Given : ... 
Math
The radius of the larger circle is 9cm. The diameter of the smaller circle is 11cm. Find the area of the shaded region. I don't understand this questions at all please help. 
MATH
A TRIANGLE IS INSCRIBED IN A CIRCLE SUCH THAT ONE OF ITS SIDES IS A DIAMETER OF THE CIRCLE.IF THE RADIUS OF THE CIRCLE IS 30.5 CM AND ONE OF THE SIDES IS 60 CM, FIND THE AREA OF THE TRIANGLE? 
Plz Check my Geometry (Urgent)
***I know I've posted this several times but it's like getting skipped and or no one has gone over it so I'm posting it one more time before I go to bed. I need to have these checked by tommorrow PLEASE!*** Out of 31 questions these are ones I struggled with. after the = sign ... 
math
a circle is tangent to the yaxis at y=3 and has one xintercept at x=1 a) what's the other xintercept b) what's the equation i have no clue how to solve this! You know that the center of the circle is somewhere in the line y = 3, denote the xcoordinate by rx. Then the ... 
math
In the x y − xy− plane, the center of a circle has coordinates ( 6 , 10 ) (6,10) and the circle touches the y − y− axis at one point only. What is the radius of the circle 
GEOMETRY CIRCLES
1. Ab is a chord of a circle with center o and radius 52 cm . point m divides the chord ab such that am = 63 cm and mb=33 cm find om 2. A circle is inscribed in a triangle whose sides are 10, 10 and 12 units . a second smaller circle is inscribed tangent to the first circle ... 
Geometry about the circles
1. Ab is a chord of a circle with center o and radius 52 cm . point m divides the chord ab such that am = 63 cm and mb=33 cm find om 2. A circle is inscribed in a triangle whose sides are 10, 10 and 12 units . a second smaller circle is inscribed tangent to the first circle ... 
Geometry about the circles
1. Ab is a chord of a circle with center o and radius 52 cm . point m divides the chord ab such that am = 63 cm and mb=33 cm find om 2. A circle is inscribed in a triangle whose sides are 10, 10 and 12 units . a second smaller circle is inscribed tangent to the first circle ... 
Math: Area of Circles
Find the area of each circle shown below. The image shows a) a circle with the diameter of 20 cm and b) a circle with the radius of 7 m. 
Algebra
Could you please check some of my Algebra problems please? Write the standard form of the equation of the circle with the given center and radius. 1. (7,4);8 I got (x+7)^2 + (y4)^2=64 2. (7,10); square root of 17 I got (x+7)^2 + (y10)^2=17 3. (0,0); 2 square root of 2 I ... 
math
Find the coordinates of the center and the radius of the circle with diameter CD. C(4,2),D(8,8) 
geometry
the endpoints of the diameter of circle O are (2,1) and (16,13). what are the coordinates of its center? 
math
The end points of the diameter of a circle are P(7,4)and Q(1,10).Find the coordinates of the center of this circle. 
college precalculus
4x^2+4y^216x24y+51=0 is the equation of a circle. where is the center of the circle and what is it's radius? A. center (2,3) radius=1/4 B. center (2,3) radius=1/2 C. center (2,3) radius=1/4 D. center (2,3) radius=1/2 
Math
I think this will be the last one. Find the radius of circle C if the measure of anglePQR=24° and the length of arc PR is 8pi. Answers: a.15 b.20 c.30 d.60 e.45 The diagram looks like a circle with its center at C. At a point on the edge of the circle is Q with lines reaching... 
Math  Answer Check
Prove that circle A with center (–1, 1) and radius 1 is similar to circle B with center (–3, 2) and radius 2. From A to B: (x  2, y + 1), scale factor 2? 
geometry
For "circle"(O,r) , AP is the tangent at "A belongs to circle", from an exterior point P. Now, OP "intersection" circle = {B}. If BP = 1.6 = AB/5 , Then find diameter of the circle. 
algebra
1.)Find the equation of the circle with center (1, 3) and radius r =2. 2.)Find the area of the circle of the above problem? 
Physics
I have to design a laboratory activity to answer the question, "What is the relationship between the diameter of a circle and the area of the circle?" My teacher said to use a previous activity as a templete to help me. For the previous activity you had to find the ... 
geometry
A circle of diameter 2 inches has its center at the center of a square with 2inch sides. Find the area of the region that is inside the square and outside the circle. 
Math (urgent)
the equation x^2+y^=25 describes a circle with center at the origin and radius 5. The line y=x1 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) (4,3) and (3,4) d) ... 
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? 
Geometry
In circle O, diameter RS has endpoints R(3a,2b1) and S(a6,4b+5). Find the coordinates of point O in terms of a and b. Express your answer in simplest form. 
calculus
find the center (h,k) and radius r of the circle and then use these to (a)graph circle, (b) find intercepts if any 
geometry
F is the center of the circle, and L is the intersection of the ray with the circle, and assuming the circle has a radius of at least 6cm, the answer is 2. If the radius is less than 6cm, the answer is 1. 
Math(Please check answers)
These questions that I have completed are on a test review for my exam and I would just like to know if they are correct. These are only a few of the questions, I have more that are just not complete yet. Thank You! 1) List the intercepts for the graph of the following ... 
Circumference and Area of Circles
can someone help me with these:Find the radius, diameter and circumference of a circle with an area of 64 cm2. Write your answers as decimals rounded to the nearest hundredth. Find the circumference and area of a circle that has a rectangle inscribed inside it with sides that ... 
physics
Charges A through E have a charge of either + or  5mC. They are placed at regular intervals along a semicircle of radius 7cm. Find the magnitude and direction of the force exerted on an electron placed at the center of the circle. Find the electric potential at the center of ... 
geometry
If the endpoints of the diameter of a circle are (3, 1) and (6, 5), find the length of the diameter. 
Precalculus
The figure shows part of a curve traced by a point on the circumference of a circle of radius 4 that rotates, without slipping, around a fixed circle of radius 2. The rotating circle starts with angle t = 0 radians and the point P (x, y) at (10, 0). In this problem you will ... 
GEOMETRY INSCRIBED ANGLES MULTIPLE CHOICE QUESTION
segment BC is tangent to circle A at B and to circle D at C. (Not drawn to scale) AB=10 BC=25 and DC=3. Find AD to the nearest tenth. Hint: Draw an auxiliary line from D to segment BA. {There are two circles, the larger one has point A in the center and a dotted line going up ... 
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. 
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 microcoulombs, and the total potential at the center of the circle due to all... 
math
AOD is a diameter of circle O. The coordinates of points A and D are (11,5)and (3,5)Find the area of circle O. a. 9 pi b. 16 pi c. 25 pi d. 64 pi e. 116 pi please answer and explain