Question

2. Complete the proof of the exterior angle theorem. Given: 4 is an exterior angle of VABC . Prove: m1 m2 4m? HELP PLEASE

Answer 1

Add step 5:
`m/_1+m/_2+m/_3 = 180^circ`

and cancel out the common `m/_3` from both sides of

`m/_1+m/_2+m/_3 = m/_3+m/_4`

to find the proof.