Question

if the angle between 2 tangents drawn from an external point p to a circle of radius A and centre O , is 60° , then find lenght of OP.​

Answer 1

Let 2 tangents be PQ & PR

In triangle opq

< p = 30

tan p = oq / op

Tan 30 = a/op

1/sq3 = a/op

Op = a x sq3

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