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Mathematics 13 Online
OpenStudy (lia22):

HALP ME!!!! WILL FAN AND MEDAL!!!

OpenStudy (lia22):

OpenStudy (error1603):

Okay

OpenStudy (superteenblue):

a or c

OpenStudy (across):

\(180(n-2)\), where \(n\) is the number of sides.

OpenStudy (ijlal):

360 because any quadrilateral has interior angles summed up to 360

OpenStudy (lia22):

thnx

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