Math, asked by harrisarianna18, 3 months ago

What is the measure of angle b?
A. 117
B. 36
C. 81
D. 63

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Answers

Answered by abhishikthsmattam

Answer:

36

Step-by-step explanation:

Given,

exterior angle = 117°

Therefore it adjacent interior angle, a= 180- 117= 63°

The sum of all angles in a triangle is 180°

Therefore,

b = 180°-(81°+a)

=180°-(81+63)

=180-144

= 36°

Hope it helps..❤️

Answered by brijeshupstrilokpur

Answer:

B. 36

a+117=180

a=63

a+b+81=180

63+b+81=180

b+144=180

b=36

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