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What is the measure of angle B in the triangle? This triangle is not drawn to scale. Enter your answer in the box. m∠B= [ ]°

What is the measure of angle B in the triangle? This triangle is not drawn to scale. Enter your answer in the box. m∠B= [ ]°
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What is the measure of angle B in the triangle?

This triangle is not drawn to scale.

Enter your answer in the box.
m∠B= [ ]°

What is the measure of angle B in the triangle? This triangle is not drawn to scale-example-1
User Killerpixler
by
8.2k points

1 Answer

6 votes
40 + 2x - 30 + x + 20 = 180
3x + 30 = 180
3x = 150
x = 50

m<B = 2x - 30
m<B = 2(50) - 30
m<B = 100 - 30
m<B = 70
User Jarin Rocks
by
7.9k points
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