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OpenStudy (narissa):
How do I solve this?
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OpenStudy (narissa):
OpenStudy (narissa):
@3mar
OpenStudy (studygurl14):
First off, how many sides are there?
OpenStudy (narissa):
7
OpenStudy (3mar):
we did it before!
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OpenStudy (studygurl14):
Yes, then use the formula (s-2)180 to find the sum of the interior angles
OpenStudy (studygurl14):
And subtract all the known angle values to get the value of x
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