Question

If O is the center of the circle, find the value of x in each of the following figures

Answer 1

Answer:

A. 25° ( Angle subtended by arc at centre is double the angle subtended on circle)

B. ext ∠AOC = 360 - 130= 230°

applying the same theorem as above x= 115°

C. Similarly  ∠BOC= 90+120= 210°

( Angle subtended by arc at centre is double the angle subtended on circle)

Implies ∠BAD = 210/2= 105°=x

Answer 2

Answer:

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