Question

if o is a centre of a circle ,find the value of x in the given figure.​

Answer 1

Answer:

AOB is a straight line.

Then

A/Q

<AOC + <BOC = 180. [ Linear pair of angle ]

135° + <BOC = 180°. [ GIVEN <AOC 135° ]

<BOC = 180° - 135°

= 45°

By, degree measure theorem

<BOC = 2CDB

45° = 2CDB

<CDB = X = 45°/2

X= 22 ¹_

2