Question

Given. <1 and <2 are supplements , <3 and <4 are supplements, and <1 = <4

Prove : <2 = <3

Answer 1

Here’s the answers , it stops at 7 in the picture but here’s 8-9

8. Statement - m<1+m2=m<3+m<1
Reason - substitution property

9. Statement - m<2 = m<3
Reason - subtraction property

10. Statement - <2=<3
Reason - definition of = angles !!