Do I find the measures or the properties?

Question

anonymous · Answer

attachment

anonymous · Answer

the first one is asking for a measure... using the reasoning of "supplementary", what do angle 1 and angle 2 add to equal?

anonymous · Answer

same for the 2nd question...

anonymous · Answer

(C) is looking for a reason for the step... one of your definitions or theorems.

anonymous · Answer

(or properties...)

anonymous · Answer

hint for the last part, (e), the proof needs to end with a statement that matches the statement you were trying to prove in the first place... in other words, you just re-state the stuff in the initial proof set-up that says, Prove:_______

anonymous · Answer

180 - 35 = 145
Angle 2 is 145.
145 + 35 = 180.

If 2 and 3 are supplementary, then 
180 - 145 = 35

anonymous · Answer

$$\angle 1 \approx \angle 3$$