Question

A tangent PQ at a point P of a circle of radius 5 cm meets a line through the centre O at a point Q so that OQ = 13 cm . Find length of PQ​

Answer 1

Answer:

12 cm

Step-by-step explanation:

PQ=(13²-5²)^1/2=12

Answer 2

PQ²+PO²= QO² (By Pythagorean )

PQ²+5² = 13²

PQ²= 169-25

PQ =√144

PQ=12cm