3 years ago

What is the measure of the angle shown with the question mark?

2 answers:

7 0

Answer:

<u><em>63 degrees</em></u>

Step-by-step explanation:

77 + 40 = 117

180 - 117 = 63

(All angles in a triangle add up to 180.)

Hope this helps!

nataly862011 [7]3 years ago

7 0

Interior angles in all triangles sum to 180°.

So, 40+77+?=180

? = 180-40-77 = 63°

answer: 63°

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