In Fig. 10.67, OQ:PQ=3:4 and perimeter of = 60 cm. Determine PQ, OR and OP.
Given that OQ: PQ=3:4
Let ratio coefficient =x, so
OQ=3x and PQ=4x
We know that a tangent to a circle is perpendicular to the radius at the point of tangency
So
Then applying Pythagoras theorem in triangle POQ