3 years ago

What is A = 8x + 74 degrees and B = 2x + 56 degrees solve for x and then find the measure of B

1 answer:

3 0

Since those lines are parallel, we know that A + B = 180°

So, we have:

8x + 74 + 2x + 56 = 180
10x + 130 = 180
10x = 180 - 130
10x = 50
x = 5

B = 2x + 56
B = 10+56=66

(To check:
A = 8x + 74
A = 40+74=114
114+66=180)

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