Question

please answer me fast ​.

Answer 1

Answer:

Step-by-step explanation:

Angle A = 100°

Let angle but =x and angle c also x

( there sum is 180° )

A+b+c=180°

100+x+x =180°

100+2x =180°

2x=180°-100°

2x=80°

X=80/2

X = 40

So angle a and b = 40°