Geometrymedium · Past Paper
A chord is 24 cm long and its distance from the center is 5 cm. What is the radius of the circle?
A12 cm
B13 cm
C15 cm
D17 cm
✓ Correct Answer: B — 13 cm
r^2 = (24/2)^2 + 5^2 = 12^2 + 5^2 = 144 + 25 = 169. r = 13 cm.
Share this question
More from Geometry
- If the point (x, y) is equidistant from (5, 1) and (-1, 5), then:
- What is the equation of a line passing through (0,0) with slope m?
- An exterior angle of a triangle is 110 degrees and one of the interior opposite angles is 40. Find the other interior opposite angle.
- An arc of length 15 cm subtends an angle of 45 degrees at the center. Find the radius.
- The distance from the center of a circle to a chord is called: