3 years ago

PLEASE HELP, THE HECK IS THIS?

Mathematics

1 answer:

FrozenT [24]3 years ago

6 0

Answer:

m∠7 = 140º

Step-by-step 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

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