Find the surface area of the figure. 21 in. 2 SA = [ ? ]in.? 8 in 11 in

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asked May 1, 2023 128k views

9 votes

Find the surface area of the figure. 21 in. 2 SA = [ ? ]in.? 8 in 11 in

Mathematics
high-school

Nickb asked

by Nickb

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1 Answer

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Check the picture below.

$\stackrel{\textit{left and right}}{2(8)(21)}~~ + ~~\stackrel{\textit{front and back}}{2(11)(21)}~~ + ~~\stackrel{\textit{top and bottom}}{2(11)(8)}\implies 974~in^2$

Cryssy answered May 8, 2023

by Cryssy

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