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A chord of 16 cm lies in a circle of radius 10 cm. How far is the chord from the centre?

A12 cm
B8 cm
C6 cm
D4 cm
Answer & Solution
Correct answer: C. 6 cm
The perpendicular from the centre bisects the chord, so the distance is the square root of 100 - 64 = 6 cm.
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