3 years ago

What is the measure of angle B in the triangle?

2 answers:

5 0

The interior angles of a triangle add up to 180 degrees

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

< A = 40
< B = 2x - 30.....2(50) - 30 = 70 <===
< C = x + 20......50 + 20 = 70

wlad13 [49]3 years ago

5 0

Answer:that answer to the test is 70

Step-by-step explanation:

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