Question

Find the measure of each angle in triangle abc.

a=50-x b=9x-40 c=90
A) a=130 b=60 c=90
B) a=60 b=130 c=90
C) a=40 b=50 c=90
D) a=50 b=40 c=90
No Guessing Please and show work thank you.

Answer 1

recall that the sum of all interior angles in a triangle is 180°.

therefore, a + b + c = 180°

`image`