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I need to solve for A.
Please help! Thank you!

I need to solve for A. Please help! Thank you!-example-1

1 Answer

5 votes

Explanation:

125 is vertically opposite to the interior angle of triangle

then X+40+X+31+125=180(sum of angle of triangle is 180)

the we get X= -22

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User Cherankrish
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