Points P and Q are 13 cm and 17 cm away from the centre O of a circle

MATHEMATICS · Subjective · CBSE · Mathematics · Circles · Circles

Problem

Points P and Q are 13 cm and 17 cm away from the centre O of a circle, respectively. The lengths of the tangents drawn from P and Q to the circle are in the ratio 3 : 4. Find the radius of the circle.

Related theory

Pythagoras' Theorem
Triangle Properties
Circles
Tangent length properties
Number of tangents from a point

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