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christiana-sutton
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Use the Formula
2(l • W) + 2(W • h) + 2(l • h)
or SMILE!!
Length x Width x Height
To find the surface area
Smiley Face Method
Multiply l x w
Multiply w x h
Multiply l x h
Length x Width x Height
This gives you the area ofthe Topthe Sidethe Front
ADD ‘EM UP!!!
You’re Not Done Yet!Since a box has six sides and you’ve only found three sides, you have to double your answer.