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Mathematics 14 Online
OpenStudy (anonymous):

How do I solve for x? *pic in comments*

OpenStudy (anonymous):

OpenStudy (anonymous):

Online teacher is not answering any of my questions so I need help please

jimthompson5910 (jim_thompson5910):

How many sides does this polygon have?

OpenStudy (anonymous):

7

jimthompson5910 (jim_thompson5910):

so we use the formula S = 180(n-2) where S = sum of interior angles n = number of sides to get... S = 180(n-2) S = 180(7-2) S = 900 which means that all 7 interior angles add up to 900 degrees

OpenStudy (anonymous):

A heptagon's angles are supposed to add up to 900. Add up all the angles you know, and subtract that number from 900.

OpenStudy (anonymous):

I got 218

OpenStudy (anonymous):

Hmm, I got 117.

OpenStudy (anonymous):

oh I forgot to add 101

OpenStudy (anonymous):

x=117

OpenStudy (anonymous):

me too

OpenStudy (anonymous):

117 is correct!

OpenStudy (anonymous):

Thanks for the help everyone!

OpenStudy (anonymous):

You're welcome, anytime(:

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