Given: Angle 5 and Angle 4 are congruent. Prove angle 4 and angle 3 are supplementary...?

Question

the drawing is like this
5 is osn top adjacent to 3. 4 is down more on the same line.
There is one line going through 5 and 3 to make an angle. Another line goes under 4 to make an angle.

Answer 1

Supplementary angles add up to equal 180 degrees, which is the angle formed by a straight line.

The proof looks like this.
Angle 5 supplement Angle 3 By definition
Angle 4 = angle 5 Alternate angles
angle 4 supplement angle 3 Equal items can be substituted for each other.

Answer 2

You have to draw that chart, one side with "statements", the other "Reasons".