Question

PLS HELP
Given the following diagram, find the required measures.
Given:l || m
m∠1=120
m∠3=40
m∠7=
60
40
140

Answer 1

Answer:

40

Step-by-step explanation:

Alternating angels are equal if 3 is equal to 40 then 7 must also be forty (this only applies since the lines are parallel)