A tangent PQ at a point P of a circle of radius 12 cm meets a line through the centre O at a point Q so that OQ=13 cm. Length PQ is :

A tangent PQ at a point P of a circle of radius 12 cm meets a line t

1.	A tangent PQ at a point P of a circle of radius 12 cm meets a line through the centre O at a point Q so that OQ=13 cm. Length PQ is :
Answer» O is the CENTER of the circle. Thus OP = 5 cm, which is the radius of the circle, and OQ = 12 cm. ... The tangent at any POINT of circle is PERPENDICULAR to the radius through the point of contact. ∴∠OPQ=90∘.

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A tangent PQ at a point P of a circle of radius 12 cm meets a line through the centre O at a point Q so that OQ=13 cm. Length PQ is :​

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A tangent PQ at a point P of a circle of radius 12 cm meets a line through the centre O at a point Q so that OQ=13 cm. Length PQ is :