Question

Do I put these three into an equation to equal 180 to find the congruent sides?

In Triangle ABC, m 10 years ago

Answer 1

yeah, first add the angles up because you know the interior angles add up to 180

then you know that the sides opposite the equal angles are congruent

Answer 2

Okay So i did the problem and the answers are angles A and C because their measures are 65* and x = 15.

Answer 3

\(4x + 5+ 2x + 20 +5x - 10=180\\11x+15=180\\11x=165\\x=15\)

plug that back into the triangle

Answer 4

m<A= 4x + 5=65
m<B = 2x + 20 = 50
m<C = 5x - 10. 65

the sides opposite the equal angles are confruent

Answer 5

\(CB\cong AB\)