Question

What is m∠1? m∠1 =
?

Answer 1

120 degrees

Explanation:

50 + 70 = 120

180 - 120 = 60

180 - 60 = 120 degrees

Answer 2

Explanation:

m<1(exterior angle) = (sum of two opposite interior angle) 50+70 = 120°.

hope this helps you.