Given angle 1 and angle 2 are supplements, angle 3 and angle 4 are supplements, angle 1 is congruent to angle 4. Prove Angle 2 is congruent angle 3

m<1 + m<2 = 180°

m<3 + m<4 = 180°

Because they are both equal to 180°, you can set them equal to each other.

m<1 + m<2 = m<3 + m<4

Angles 1 and 4 are congruent (equal), so we can subtract them from each side to get:

m<2 = m<3

answer: about 22.67

step-by-step explanation: