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Find the area of of a regular octagon with side length 20 cm.

 Mar 26, 2021
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Area  =

2 * side^2  ( 1 + sqrt 2 )  =   

2 * (20)^2  ( 1 + sqrt 2)  = 

800 ( 1 + sqrt 2) ≈  1931.37 cm^2

 

 

cool cool cool

 Mar 26, 2021

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