Can someone please answer this and explain how you answered it? Thank you.

asked Nov 8, 2018 117k views

4 votes

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First we get x
x+40+3x=180 (interior)
4x+40=180
4x=140
x=35
m<O = 3×35=105°
the answer is 105°

Maas answered Nov 13, 2018

by Maas

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