Question

Solve it please!!!!!!!!!!

Answer 1

Answer:

In figure, XY and X'Y' are two parallel tangents to a circle with centre O and another tangent AB with point of contact C intersecting XY at A and X'Y'at B. Prove that ZAOB = 90°.

SOLUTION:

Given: XY is a tangent at point P

and X'Y' is a tangent at point Q

And XY || X'Y'

AB is a tangent at point C

To prove: ZAOB = 90°

Proof: Join OC

For tangent AB & Radius OC

OC LAB

So, ACO= BCO = 90°