Question

In the fig, O is the centre of a
circle passing thro5 points A,B,C,D and angleADC = 120°. Find the value of x​

Answer 1

Step-by-step explanation:

Given

Angle ADC=120°

Here,

angle ACB is an angle on the semicircle.

Therefore,

angle ACB= 90°

As it is a cyclic quadrilateral ,

so

opposite angles are supplementary.

angle ADC + Angle ABC=180°

angle ABC= 180°- 120°=60°

By angle sum property of triangle

we have from ∆ ACB,

Angle ACB + angle ABC + angle BAC=180°

angle BAC=180°- (90°+60°)

x =30°

Hope it will help you..

Answer 2

Answer:

HOPE IT HELPS YOU.......