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What is the surface area?

 

 Jul 24, 2020
 #1
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small top      4x20  cm2

large top      10x20

bottom         14 x20

back             (8+2) x 20

Front            (2+8) x 20

Sides (two)           2   *    [  2x14    + (8x4) ]

 

Add 'em all together......

 Jul 24, 2020

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