eight points lie on the circumference of a circle. one of them is labelled P. chords join some or all of the pairs of these points so that the seven points other than P lie on different numbers of chords.

20,284 results
  1. solid mensuration

    Two perpendicular chords divide a circle with a radius of 13 cm into 4 parts. If the perpendicular distances of both chords are 5 cm each from the center of the circle, find the area of the smallest part. Please include solution. Thanks.

  2. Math

    So my question is find the circumference of the circle in terms of Pi then use the approximation 3.14 for pi and approximate the circumference. How would I do this? The radius of the circle is 2m.

  3. MATH

    Find the circumference for the circle ( use 3.14 for pi ). Round to the nearest tenth. the circumference for the circle is 23 yd.

  4. 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

  5. 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

  6. Maths

    Two parallel chords of lenght 24cm and 10cm which lie on opposite sides of the circle are 17cm apart.calculate the radius of the circle to the nearest whole number.

  7. math

    How is the circumference of a circle with radius 9cm related to the circumference of a circle with diameter 9cm? i don't understand this.Help?? Thanks:)

  8. Java Programming

    Question : Write a java program to find circumference and area of a circle. Your program should be fulfill following requirements.  Radius of the circle should be read in the main method of the program  Circumference and Area should be calculated at

  9. Maths

    There are 17 points on the circumference of a circle how many lines can be drawb to connect all possible pairs of points?

  10. Math

    Two chords intersect inside a circle. The lengths of the segment of one chord are 4 and 6. The length of the segment of the other chords are 3 and what?

  11. Mathematics

    Two parallel chords lie on opposite sides of the centre of a circle of radius 13cm Their length are 16cm and 24cm. What is the distance between the chords

  12. Math

    Hey ya'll, I really need help with some Math. 1. The diameter of a circle measures 10mm . What is the circumference of the circle? 2.The circumference of a circular painting is 62.8 feet. What is the radius of the painting? Use 3.14 for and do not round

  13. calculus

    1.find the distance between the points (-1,2) and (3,4).express your answer in simplest radical form. 3.a circle with center C(4,-2) passes through the point A(1,3).does the point B(8,-2) lie inside the circle?prove your answer.

  14. Maths

    Around a circle i place 64 equally spaced points, so that there are 64x63 divided by2=2016 possible chords between these points. I draw some of these chords, but each chord cannot cut across more than one other chord. What is the maximum number of chords I

  15. Circle Geometry - chords in a circle

    Let PQ, RS , and TU be parallel chords of a circle. The distance between chords PQ and RS is 4, and the distance between chords RS and TU is also 4. If PQ = 78 TU=50 , then find RS. how to do this? Draw some lines?

  16. Maths

    Show that the points (20°N,20°E) and (60°N,160°W) lie on the same great circle.Find their great circle distance apart.

  17. Math

    There are two chords AB and AC in a circle.[AB]=10cm, [CD]=8cm and the radius of the circle is 12cm.what is the distance of each chord from the centre of the ccircle?

  18. MATH HOMEWORK

    Find the circle circumference and circle area with a circles radius 10 inches I think the circles are is 314 but don't know the circumference.

  19. geometry

    Two parallel chords lie on opposite sides of the centre of a circle of radius 13cm.their lengths are 10cm and 24cm.what is the distance between the chords?

  20. Geometry

    A gardener is installing a circular garden. The radius of the circle 28 feet. He needs to know the circumference in order to buy materials for the edging. What is the circumference if he uses = 22/7. The circumference is ?

  21. math

    The circumference of a circle varies directly from its diameter. If the circumference of the circle having a diameter of 7cm is 7 cm, what is the circumferences of the circle whose diameter is 10cm? 18cm? 20cm? a. Write a mathematical statement that relate

  22. Geometry

    Two parallel chords of lenght 24cm and 10cm which lie on opposite side of a circle are 17cm apart. Calculate the radius of the circle to the nearest whole number.

  23. Math

    A jar contains red and green balls. Someone will randomly selects a ball with the number points earned or lost. There are four red balls, each labelled +3 points . How many green balls labelled -2 points would be required for this to be fair game ?

  24. 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

  25. math

    Find the circumference of the circle. Use 3.14 for π. Round to the nearest hundredth, if necessary. 7 in. The circumference of the circle is about inches.

  26. Pre calculus

    You have a wire that is 71 cm long. You wish to cut it into two pieces. One piece will be bent into the shape of a square. The other piece will be bent into the shape of a circle. Let A represent the total area of the square and the circle. What is the

  27. math

    n points are arranged on a cirlce and all the chords drawn. Let I(n) be the number of intersection points inside the circle if no 3 chords are concurrent. Find a formula for I(n).

  28. geometry

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  29. Geometry

    The question is to find the measure of arc PQ in Circle A. The point A is the center of the circle, and the chords PR and SQ intersect at the center. Arc PQ is (3y-10), while arc SR is (2y+20). I know there's a theorem that states that when two chords

  30. Precalculus

    Which of the following are appropriate units of angle measure? Select all that apply. 1/7-th of the circumference of a circle. 1 radian 1 inch 1/15-th of the circumference of a circle. 1 degree 1 meter

  31. math

    I'm asked to find the circumference of a circle to the nearest tenth and the area of the same circle to the nearest hundredth. The circle has a diameter of 30 and a radius of 15. I got a circumference of 94.2 and an area of 188.48cm2 with these formulas:

  32. geometry

    How are the radii of 2 two concentric circles related to the distance between them? I tried making an equation using their cirmcumferences but I was way off. All I did was subtract the inner circle's circumference from the outer circle's circumference and

  33. Algebra

    The circumference of a circle is found by the formula C=pi(d) where d is the diameter of the circle. Does circumference vary directly as diameter? If so what is the constant of variation

  34. Math (URGENT)

    write a formula that gives you the number of regions formed when x points are placed on a circle and all possible chords are drawn. ex. 2pts has 2 regions, 3pts has 4 regions, 5pts has 17 regions

  35. maths

    eight points lie on the circumference of a circle. one of them is labelled P. chords join some or all of the pairs of these points so that the seven points other than P lie on different numbers of chords. what is the minimum number of chords on which P

  36. Mathematics

    Two parallel chords in a circle are 10 cm and 24 cm long. If the radius of the circle is 13 cm, find the distance between the chords if thay lie on the opposite sides of the center

  37. geometry

    Two parallel chords lie on opposite sides of the centre of a circle of radius 13cm.their lengths are 10cm and 24cm.what is the distance between the chords?

  38. maths-Circles

    O is the centre of a circle which has two chords BA and BC with point B on the circumference of the circle.If OB bisects angle ABC,prove that AB=AC

  39. Math

    let AB and CD be perpendicular diameters of a circle. two chords AE and AF, which lie in the two different semicircles determined by the diameter AB are cut by the diameter CD in the points X and Y respectively. prove that angle EXF = angle EYF

  40. algebra

    Two points are chosen uniformly at random on the unit circle and joined to make a chord C1. This process is repeated 3 more times to get chords C2,C3,C4. The probability that no pair of chords intersect can be expressed as a/b where a and b are coprime

  41. important maths ques

    AB and CD are two parallel chords of a circle such that length of AB and CD are 10 cm and 24cm respectively.if the chords are opposite sides of the centre and the distance between them is 17 cm ,find the radius of the circle.

  42. 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

  43. math

    in circle p below the lengths of the parallel chords are 20,16, and 12. Find measure of arc AB..... the chord with a length of 20 is the diameter. the chords with lengths 16 and 12 are below the diameter torwards the bottom of the circle. arc AB is the arc

  44. Geometry

    AB and CD are two parallel chords of a circle whose centre is O and radius is 20cm.If Ab=24cm and CD=32cm find distance between AB and CD. If it's given that they lie. 1.onthe opposite sides of centreO. 2.on the same side of the centre o.

  45. Geometry

    Two parallel chords lies on opposite sides of the centre of a circle of radius 13cm. Their length are 10cm and 24cm what is the distance between the chords

  46. MATHS

    two circles c1 and c2 meet at the points A and B. CD is a common tangent to these circles where C and D lie on the circumference of C1 and C2 respectively. CA is the tangent to c2 at A. When produced DB meets the circumference of C1 at p. Prove that PC is

  47. Geometry

    In circle O, perpendicular chords AB and CD intersect at E so that AE= 2, EB= 12 and CE= 4. Find the radius of circle O and the shortest distance from E to the circle.

  48. geometry

    in circle O, perpendicular chords AB and CD intersect at E so that AE=2, eb=12 and CE=4. find the radius of a circle O and the shortest distance from e to the circle

  49. math

    Two chords in a circle are equal in lengh.The distances from the centre of the circle can be represented by x2 and 4x respectively.How far is it chord from the centre of the circle?[Under the topic of properties of a circle.]

  50. 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

  51. c# programming

    To see how the four steps of the software development procedure discussed in Section 1.7 can be applied in practice, you apply them to the following simple programming problem: The circumference, C, of a circle is given by the formula C = 2ðr, where ð is

  52. c programming

    To see how the four steps of the software development procedure discussed in Section 1.7 can be applied in practice, you apply them to the following simple programming problem: The circumference, C, of a circle is given by the formula C = 2ðr, where ð is

  53. college algebra

    The diameter of the Earth is approximately 7,920 miles. Given that the circumference of a circle is pi times its diameter, which statement best describes the length of a trip from Washington to Masdagascar that is approximately 8,600 miles long? a.One

  54. Maths

    Radius of a circle,13cm. Length of the chords is 10cm find the distance of the chord from the center of a circle

  55. 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?

  56. math

    The radius of circle is given as 2.8 cm to 2 significant figure (a) If C is the circumference of the circle, determine the limits between which C/π lies. (b) By taking π be 3.14; find to 4 significant figures the line between which the circumference lies

  57. Math

    Two parallel chords of length 20cm and 11cm lie on opposite sides of a circle. The distance between the two chords is 15cm. Calculate, correct to the nearest whole number the radius of the circle

  58. math

    two parallel chords lie on opposite sides of the centre of a circle of radius 13cm.their lengths are 10cm and 24cm. what is the distance between the chords

  59. mathematics

    two parallel chords lie on opposite sides of the centre of a circle of radius 13cm.thir lengths are 1ocm and 24cm.what is the distance between the chords

  60. math

    A circle of area 25 pi is graphed in the coordinate plane. If its center has coordinates (8,0), which of the following points MUST lie on the circumference of the circle? a. (0,0) b. (0,5) c. (16,0) d. (3,0) e. (0,8) please answer and explain

  61. math

    n points are arranged on a cirlce and all the chords drawn. Let I(n) be the number of intersection points inside the circle if no 3 chords are concurrent. Find a formula for I(n).

  62. Math

    Six points lie on the circumference of a circle. How many different triangles can be drawn having some of these points as vertices?

  63. math- algebra- help please!

    12 points lie on a circumference of a circle how many inscribed triangles can be constructed having 3 vertices?

  64. Math

    Two points are chosen uniformly at random on the unit circle and joined to make a chord C1. This process is repeated 17 more times to get chords C2,C3,…,C18. What is the expected number of pairs of chords that intersect?

  65. Math Help

    Two points are chosen uniformly at random on the unit circle and joined to make a chord C1. This process is repeated 17 more times to get chords C2,C3,…,C18. What is the expected number of pairs of chords that intersect?

  66. Geometry

    Two points are chosen uniformly at random on the unit circle and joined to make a chord C1. This process is repeated 17 more times to get chords C2,C3,…,C18. What is the expected number of pairs of chords that intersect?

  67. math

    x^2 + y^2 - 8x -2y -3 = 0 the points S and T lie on the circumference of the circle. M is the midpoint of the chord ST. Length of Centre C to M is 2. whats the length of ST??

  68. math

    PQ and RS are 2 parallel chords of a circle such that PQ = 8 cm & RS = 6 cm. If the chords are on the opposite sides of the centre and distance between them is 4 cm. find the radius of the circle

  69. Geometry

    Two points are chosen uniformly at random on the unit circle and joined to make a chord C_1. This process is repeated 3 more times to get chords C_2, C_3, C_4. The probability that no pair of chords intersect can be expressed as \frac{a}{b} where a and b

  70. Geometry

    Two points are chosen uniformly at random on the unit circle and joined to make a chord C_1. This process is repeated 3 more times to get chords C_2, C_3, C_4. The probability that no pair of chords intersect can be expressed as \frac{a}{b} where a and b

  71. 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

  72. gometry

    in a circle of radius 17cm, two parallel chords are drawn on opposite sides of a diameter. the distance between the chords is 23cm. if the length of one chords is 16cm, find the length of the other.

  73. 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

  74. 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

  75. Geometry

    in circle p below the lengths of the parallel chords are 20,16, and 12. Find measure of arc AB..... the chord with a length of 20 is the diameter. the chords with lengths 16 and 12 are below the diameter torwards the bottom of the circle. arc AB is the arc

  76. Geometry

    A circle \Gamma cuts the sides of a equilateral triangle ABC at 6 distinct points. Specifically, \Gamma intersects AB at points D and E such that A, D, E, B lie in order. \Gamma intersects BC at points F and G such that B, F, G, C lie in order. \Gamma

  77. Math

    How many chords are determined by seven points on a circle? How do you do it, not answer.

  78. geometry

    there exists a circle with chords. the chords are congruent. their corresponding arc measurements are 80 degrees and 2x+10 solve for x

  79. 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

  80. 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

  81. 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?

  82. 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?

  83. Geometry

    2 circles with centers O and O' are drawn to intersect each other at points A and B. Center O of one circle lies on the circumference of the other circle. CD is drawn tangent to the circle with center O' at A. Prove that OA bisects angle BAC.

  84. sir steve reiny damon bob maths help steve!!!

    Point P(2,1) and Q(4,-5) lie on a circle. If line 2x-y-13=0 is a tangent to the circle at Q, what is (*) Coordinates of the center of the circle; (*) Equation of the circle. (*) Sketch out your circle. Step

  85. geometry!!!! PLEASE 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? Details and assumptions: -The lengths given are side lengths, not arcs.

  86. Math

    DETERMINE the equation of the circle that has the following three points on its circumference: A(1,5), B(3,7) and C(5,5).

  87. Geometry

    How do you find the area and circumference of a circle. This site has a great explanation for finding area and circumference of a circle. http://www.coolmath.com/reference/circles-geometry.html

  88. Math

    The circumference of a circle varies directly from its diameter. If the circumference of the circle having a diameter of 7cm is 7 cm, what is the circumferences of the circle whose diameter is 10cm? 18cm? 20cm? a. Write a mathematical statement that relate

  89. Math

    Marie forgot the formula for finding the area of a circle, so she divided the circle into sectors and created a parallelogram-shaped figure. What should she use as the height of the figure? A.the radius B.360 C.12 of the circumference D.the circumference

  90. math

    show that the points A(0,-4) B(3,-1) C(-3,-1) lie on the circle whose centre is (0,1). find the length of its radios

  91. Math

    A gardener is installing a circular garden. The radius of the circle 28 feet. He needs to know the circumference in order to buy materials for the edging. What is the circumference if he uses = . The circumference is __ feet

  92. math

    how do you find the diameter of a circle if you don't have the radius? the circumference is 628 cm. Divide the circumference by pi, which is 3.14 (approximately). That will give you the diameter. Circumference = pi * D

  93. math

    find the equation of a circle whose diameter has ends points A=(-4, 3)and B=(5, 7)and it subtends a 90 degree at the circumference.

  94. Math

    write a formula that gives you the number of regions formed when x points are placed on a circle and all possible chords are drawn. ex. 2pts has 2 regions, 3pts has 4 regions, 5pts has 17 regions

  95. Math

    write a formula that gives you the number of regions formed when x points are placed on a circle and all possible chords are drawn. ex. 2pts has 2 regions, 3pts has 4 regions, 5pts has 17 regions

  96. Math

    Jason drew two circles. the diameter of the larger circle is twice the diameter of the smaller circle. What is the ratio of the circumference of the smaller circle to the circumference of the larger circle?

  97. Mathematics

    The radius of a circle is given as 2.8cm to 2significant figures(a)if c is the circumference of the circle, determine the limits between which c/π lies (b) by takingπ to be 3.142, find, to4significant figures the line between which the circumference lies

  98. Math

    Circumference of a circle. If the circumference of a circle is 1.3 X 10-12. (The -12 is the exponnet of 10.) Then what is the radius?

  99. Geometry-8th grade

    In circle O, chords AB and CD are congruent. Ab measures 2x + y, while CD measures 16.5 Two other chords are congruent. GH equals x +2y and KL equals 13.5 I set them up like this 2x + y = 16.5 x+2y = 13.5 then I substituted-rewrote it x = 13.5-2y Then

  100. Geometry-8th grade

    In circle O, chords AB and CD are congruent. Ab measures 2x + y, while CD measures 16.5 Two other chords are congruent. GH equals x +2y and KL equals 13.5 I set them up like this 2x + y = 16.5 x+2y = 13.5 then I substituted-rewrote it x = 13.5-2y Then

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