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Murljashka [212]
2 years ago
9

Help me out please simple

Mathematics
1 answer:
const2013 [10]2 years ago
5 0

<u>A straight line is 180 degrees in measure</u>

<u>The straight line is made up of three angles</u>

           --> angle 1

           --> angle 2

           --> angle with a little square on it

                     (<em>angle with a little square means it is 90 degrees in measure)</em>

<u>Let's set up an equation</u>

    angle1 + angle2 + 90 = 180\\angle1 + 87 + 90 = 180\\angle1 = 3

Thus angle 1 is <u>3 degrees</u> or the <u>second choice</u>

<u></u>

Hope that helps!

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