Question

In triangle Abc , A=x, B=2x-15, C= 3x + 21. Find x

Answer 1

Answer:

1

Step-by-step explanation:

A+B+C=180°

x+2x-15+3x+21=180

6x=6

x=6/6

x=1

Answer 2

Step-by-step explanation:

triangle=189degree

so,A=60°,B=2(60)-15,C=3(60)+21

A=60°,B=120-15,C=180-21

A=60°,B=105,C=159

therefore x=60°