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 is a regular octagon of side 12cm. Find the area in square centimeters of trapezoid . Express your answer in simplest radical form.

 Dec 15, 2019
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i think you forgot your shape names! :o also, you can find a pretty rad answer by CPhill here:

https://web2.0calc.com/questions/help_71324

^^ edited for turning that into a link heh

 Dec 15, 2019
edited by atlas9  Dec 15, 2019

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