Geometrymedium · Past Paper
A chord of length 24 cm is at a distance of 5 cm from the center. Find the radius.
A12 cm
B13 cm
C17 cm
D19 cm
✓ Correct Answer: B — 13 cm
Half chord = 12. Using Pythagoras: r^2 = 5^2 + 12^2 = 25 + 144 = 169. r = 13 cm.
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