Question

please solve quickly​

Answer 1

Answer:

Here is the answer

Step-by-step explanation:

The answer is Option (c)

Answer 2

Answer:

90°

Step-by-step explanation:

This is because AB = BC so angle ADC = angle ADB

and BC is a straight line so angle ADC + angle ADB = 180°

=> Angle ADC = 180/2 = 90°