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.
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