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A chord 16 cm long is drawn in a circle of radius 10 cm. The distance of the chord from the centre is
A4 cm
B8 cm
C6 cm
D12 cm
Answer & Solution
Correct answer: C. 6 cm
1. Half-chord = 8; right triangle with hypotenuse = radius 10.
2. d squared = 10 squared - 8 squared = 100 - 64 = 36.
3. d = 6 cm.
_Source: NCERT Class 10 Mathematics, Ch 11 "Areas Related to Circles", §11.2_
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