Answer:
x = 30; m<A = 25; m<B = 120
Step-by-step explanation:
The sum of the measures of a triangle is 180 degrees.
Therefore m<A + m<B + m<C = 180
In other words,
(x -5) + (3x + 30) + 35 = 180, or
4x + 60 = 180, which means 4x = 120 and x = 30.
The measure of angle A = x - 5 = 30 - 5 = 25
The measure of angle B = 3x + 30 = 3(30) + 30 = 120
