Question

plz give me answer...​

Answer 1

Answer:

we know that sum of all angles of a triangle is 180°

so,

A+B+C=180°

6x-7+7x+1+2.5x=180°

15.5x-6=180°

15.5x=186°

155x=1860

x=1860/155

x=12°

A=6x-7

A=72-7=65

B=7x+1

B=84+1=85

C=2.5x

C=30

.......666.......