3 years ago

What is the measure of angle b?

Mathematics

2 answers:

aksik [14]3 years ago

6 0

Answer:

b=36

Step-by-step explanation:

by triangle exterior theorem

b+81 = 117

b=36

igor_vitrenko [27]3 years ago

3 0

Answer:

B is 36 degrees, and a is 63 degrees

Step-by-step explanation:

180 - 117 = 63

<u>a = 63 degrees</u>

81 + 63 + b = 180

144 + b = 180

180 - 144 = b

<u>36 degrees = b</u>

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