Question

In figure, OABC is a rhombus and O is the centre of circle. Find the value of x.

Answer 1

Answer:

90

Step-by-step explanation:

IF WE draw a diameter through O

it become semi cirlce

angle in a semi cirle is of 90

Answer 2

Answer:

Since OABC is a rhombus

Therefore angle AOB= angle ABC

Angle AOB=x

reflex angle AOC=360-angleAOB

reflex angle AOC=360-x

We know that, angle ABC = 1/2 reflex angle AOC

=> x= 1/2 (360-x)

=> 2x=360-x

=> 3x=360

=> x=120° [answer]