3 years ago

I’m confused on this one

1 answer:

6 0

In this parallelogram, angle A and B add up to 180 (they are supplementary). Set up an equation like this and solve:

3x + 4 + 143 = 180

3x + 147 = 180

3x = 33

x = 11

The measure of x is 11°.

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