Maths

In a circle of radius 12cm a chord is drawn 3cm from the centre. Calculate the angle subtended by the chord at the centre

  1. 👍
  2. 👎
  3. 👁
  1. Draw the circle and chord.
    Draw a radius perpendicular to the chord.
    You can see that
    cos(θ/2) = 3/12

    1. 👍
    2. 👎
    👤
    oobleck
  2. calculate the angle and findthe area of the sector

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Mathematics

    If a chord of length 10cm is at a distance of 12 cm from the centre of a circle. Find the radius of the circle.

  2. 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.

  3. maths

    calculate the area of a sector of a circle which subtends an angle of 45° at the centre of the circle, radius 14cm

  4. Math

    A circle has a radius of 10 cm. A chord is 6 cm from the center. What is the length, in centimeters, of the chord?

  1. Geometry

    Express answer in exact form. Find the area of the larger segment whose chord is 8" long in a circle with an 8" radius. (Hint: A chord divides a circle into two segments. In problem 1, you found the area of the smaller segment.)

  2. math

    in a circle of radius 6cm , a chord is drawn 3cm from the circle (a)calculate the angle subtended by the chord at the centre of the circle

  3. Math

    A chord 30cm long is 20cm from the centre of a circle calculate the length of a chord which is 24cm from the centre.

  4. Math

    A quarter-circle with radius $5$ is drawn. A circle is drawn inside the sector, which is tangent to the sides of the sector, as shown. Find the radius of the inscribed circle. The rest is in asymptote size( 100 ) ; // Not to

  1. 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

  2. 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

  3. mathematics

    A chord of a circle is 9cm. If its distance from the centre of the circle is 5cm,calculate the radius of the circle

  4. Mathematics

    In a circle of radius 6cm a chord is drawn 3cm from the center. Calculate the angle subtended by the chord at the center of the circle

You can view more similar questions or ask a new question.