Question

PLEASE HELP, THE HECK IS THIS?

Answer 1

m∠7 = 140º

Explanation:

m∠4 = m∠2 + m∠3

120 = 80 + m∠3

m∠3 = 40

m∠3 + m∠7 = 180

40 + m∠7 = 180

m∠7 = 140º