Question

plz solve this question....​

Answer 1

Step-by-step explanation:

.......

In fig XY and X'Y' are parallel tangents.

Given

Angle inscribed in a semicircle is right angle.

So

Angle AOB = 90.

HENCE PROVED

Hope it helps.

Answer 2

Answer:

Answer in attachment..

Mark me as brainliest plzz