Question

This question is from Chapter : Circles (Class:9)​

Answer 1

Answer:

y = 150 degree

due to opposite side angles

x = 180 - 150

= 30 degree

sum of AOC and ADC is 180 degree

hope you will understand dear mate

Answer 2

x = 150/2 = 75° (Angle subtended by an arc at centre is twice the angle subtended by it at any other point on the circle)

y = 180 - 75 = 105° (ABCD is cyclic quadrilateral and sum of opposite angles of cyclic quadrilateral is equal to 180 degree)