How to Draw a pair of tangents to a circle of radius 4.5 cm , which are inclined to each other at an angle of 45*

 1) draw a circle of radius 4.5 cm

2) take 2 points A and B on the circumference of circle and join OA and OB

3) from A and B make angle of 45* and let both the angles produced upto a point P.

5) join PA and PB. these are the tangents inclind to each other at 45*