Question

Given the following diagram, find the missing measure.

m 1 = 30°, m 2 = 45°, m 3 =

Choices:
30
75
105
150

Answer 1

Altogether your triangle should equal 180 degrees: so 30+45= 75 then 180-75= 105 which means your answer is 105 degrees

Answer 2

The sum of the interior angles for a triangle ALWAYS equal 180 degrees. So if M1 = 30 and M2 = 45, then M3 = 105. Hope this answers your question!