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Identifying Shapes and Areas of Different Regular Figures

One can of fr...

Question

One can of frosting covers about $280 s q u a r e i n c h e s$ . Is one can of frosting enough to frost the cake? Explain.

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Solution

Hint:
The cake piece is in the shape of a rectangle
The surface area of the rectangular prism $= 2 (l w + l h + w h)$
where l = length , w= width , h = height
Surface area $= 2 (39 + 117 + 27)$
$366$ square inches
Final answer: No, one can of frosting is not enough to frost the cake.

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Identifying Shapes and Areas of Different Regular Figures

Standard VIII Mathematics

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