Question

Complete the paragraph proof.

Given: angle 1 and angle 2 are supplementary, and angle 2 and angle 3 are supplementary.

Prove: angle 1 ≅ angle 3

By the definition of supplementary angles, angle 1 + angle 2 = _____(a) and angle 2 + angle 3 = ____ (b). Then angle one + angle 2 = angle 2 + angle 3 ______(c). Subtract angle 2 from each side. You get angle 1 = ______(d), or angle 1 ≅ ______(e).

I think that they are the following. I'm not for certain though.

a is 180 degrees.
b is 180 degrees.
c is 360 degrees.
d ???
e is angle 3

What do you think d is? Do you think I am correct?

Answer 1

Sorry, I thought I was in the math section.