Question

Help Please?
https://snag.gy/Qmy0Ja.jpg

She can subtract m ∠1 from both sides of m ∠1 + m ∠2 = m ∠QVS, and m ∠3 from both sides of m ∠3 + m ∠2 = m ∠TVR.

She can substitute m ∠3 for m ∠1 in m ∠1 + m ∠2 = m ∠QVS.

She can measure ∠QVS and ∠QVR with a protractor to prove they are the same.

She can prove that ray VR bisects ∠QVS and ray VS bisects ∠TVR. Then she can prove that ∠1, ∠2, and ∠3 are all congruent.