Question

(23) A circle of radius 13 cm, the length of chord is 10 cm.
Find out it distance from centre.
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Answer 1

$\huge\bold{ANSWER~:}$

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In ∆OAM ,

OA^2 = OM^2 + AM ^2

OM^2 = OA ^2 - AM ^2

$= \sqrt{ {13}^{2} - {5}^{2} } \\ \\ = \sqrt{144} \\ \\ = 12 \: cm$