A tangent PQ at a point P of the circle with radius 5cm meets a line through the centre O at a point Q so that OQ is 12cm. the length of PQ is
8.5 cm
√119 cm
12 cm
13 cm
A tangent PQ at a point P of a circle of radius 5 cm meets a line through the centre O at appoint Q such that OQ = 12 cm. Length PQ is