A chord of length 16 units is at a distance of 6 units from the centre of a circle then its radius is

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answer is B.

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Detailed Solution

Given that d =distance from centre to the chord=6 and given length of the chord=16 i.e., 2r2−d2=16 ⇒r2−36=8 ⇒r2=100 ⇒r=10

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