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3 years ago

The interior angles formed by the sides of a pentagon have measures that sum to 540°. What is the measure of angle B?

Mathematics

2 answers:

Sindrei [870]3 years ago

6 0

Just took the test. 130° is not correct. The corrrect answer is 110°.

attashe74 [19]3 years ago

3 0

X - 35 +130 + x - 5 + x - 30 + 75 = 540
3x +135 = 540
3x = 405
x= 405/3
x= 135

m<B = x - 5
m<B = 135 - 5
m<B = 130

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