Question

ANSWER THIS FASTTTTTT MATHS CLASS 9

Answer 1

Angle COA = 180° - 110° = 70°.

Hence x = 70°/2 = 35° (as angle subtended in centre by an arc is equal to twice the angle subtended in circumference by the same arc).

Answer 2

Answer:

X= 35

Step-by-step explanation:join a to c

Now chord ac subtends angle aoc to the centre and angle adc to the circumference

So,angle ADC= 1/2 angle AOC

As an angle subtended by a chord to the centre is double the angle subtended by it on the rest of the circle

So, AOC = 180-110(linear pair)

AOC = 70°

ADC = 1/2× 70

=35°=x