Question

What is the measure of angle B in the triangle?

This triangle is not drawn to scale.

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m∠B=

Answer 1

Angle B = 70 degrees because a triangle always adds up to 180 degrees. So, if x = 50 then angle C would be 70. 40 + 70 = 110. 180-110 =70 (Angle B equals 70). Also 2(50)-30= 70 so Angle B = 70 degrees.