Question

11. In AABC-A=3 B and C=21B. Find all the three angles of AABC-​

Answer 1

Step-by-step explanation:

A = 3B

C = 21B

But,

A + B + C = 180°

So,

3B + B + 21B = 180°

25B = 180°

B = 7.2°

Therefore,

A = 21.6°

B = 7.2°

C = 151.2°