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THis is the link to the problem: https://web2.0calc.com/questions/geometry_79786

 I drew a rectangle around the image and subtracted triangles, and I got the wrong answer. 

 Jan 23, 2020
 #1
avatar+370 
+2

The area of the octagon is:   A ≈ 32 u²   indecision

 

 Jan 23, 2020

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