1.

A 10 centimetre long tangent is drawn to a circle from a point 12 CM away from the centre of the circle find the radius of the circle

Answer»

ANSWER:

PQ=10cm

OQ=12cm

OP=?

NOW by P.T

OQ²=PQ²+OP²

12²=10²+OP²

(12+10)(12-10)=OP

2√11=OP

Radius=2√11



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