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Solving Polygon Angle Problems Answers needed

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Solving Polygon Angle Problems Answers and Explanation

1.The first problem asks you to state the sum of the interior angles for each polygon. The sum of the interior angles of a polygon can be found using the formula:

The square in part (b) has 4 sides, so the sum of its interior angles is:

(4 - 2) * 180° = 360°

2. 120+34+x=180

We can solve the equation by adding the numbers on the left side, rearranging the terms, and then adding/subtracting to both sides.

Rearrange terms: x+279=360

Add/subtract to both sides: x+279−279=360−279

a. x+126=180

x=45

x+45=180

x=35