1. A tangent is drawn to a circle of radius 6 cm from a point situated at a distance of 10 cm from the centre of the circle. The length of the tangent will be
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By: anil on 05 May 2019 01.51 am
radius OA = 6 and OB = 10 Now, in $$ riangle$$OAB right angle at A AB = $$sqrt{(OB)^2 - (OA)^2}$$ = $$sqrt{100-36} = sqrt{64}$$ = 8 cm
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