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The sum of all but one interior angle of a convex polygon is 1070. (recall, convex means that eac interior angle is <180) What is the number of sides of this polygon?  and what is the measure of the unknown interior angle?

 Mar 10, 2021
edited by Guest  Mar 10, 2021
 #1
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From the formula for the sum of the angles in a polygon, the number of sides is 6, and the unknown interior angle is 30 degrees.

 Mar 10, 2021
 #2
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How do you show the work?

Guest Mar 10, 2021

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