Question

AC is a tangent at a point A to a circle centered at
O.if triangle OAC is an isosceles triangle find angle AOC

Answer 1

Answer:

90 degreee

Step-by-step explanation:

It so because the radius make a right angle with the tangent

Answer 2

Answer:

45° ANSWER..

Step-by-step explanation:

Let,

AC be the tangent to circle of center 0.

OA = AC (hence, Radius always = to tangent)

HENCE, (<OAC=90°) and <OAC is isosceles triangle.

SO, <O=<C=x

Now, by angle sum property of triangle.

We have,

90°+x+x= 180°

2x= 180° - 90°

x=90°/2=45

(x= 45°) Proved....

Hence, Angle OAC= 45°...