3 years ago

Can someone please help me on this one?

1 answer:

4 0

Add the three angles and set them to 180
4x-13+15+x+18=180
5x+20=180
5x=160
x=32

Then plug in to get A and C
A=4*32-13
A=115

C=32+18
C=50

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${\qquad\qquad\huge\underline{{\sf Answer}}}$

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