For △ABC, m∠A = (x+2) °, m∠B = (x-4) °, and m∠C = (x+2) °. What is the measure of angle B?

The sum of the mmeasures of the interior angles of a triangle is 180 degrees.

x + 2 + x - 4 + x + 2 = 180

Simplify.

3x = 180

Divide both sides by 3.

x = 60

Angle A and C = 60 + 2 = 62 degrees.

Angle B = 60 - 4 = 56 degrees