Question

in the below figure, the value of angle ADC is..​

Answer 1

Answer:

45 my friend is the answers

Answer 2

Answer:

45°

Step-by-step explanation:

∠AOB+∠COB= ∠AOC

60°+30°= ∠AOC

90°= ∠AOC

O is the centre of the circle

2∠ADC= ∠AOC (Theorem 10.8)

2∠ADC= 90°

∠ADC= 90/2

∠ADC= 45°

NOTE:- Theorem 10.8 states that Angle Subtended by an arc at the center is double the angle subtended by it at any point on the remaining part of the circle.

Hope It Helps :)