SOLUTION: An open cardboard box is 20cm long,12cm wide and 8cm deep.calculate the total area of cardboard in the box?

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Question 609427: An open cardboard box is 20cm long,12cm wide and 8cm deep.calculate the total area of cardboard in the box?
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi



highlight%28open%29 cardboardbox is 20cm long,12cm wide and 8cm deep

Surface Area of the Open box = lw + 2lh + 2wh = 20·12 + 2·20·8 + 2·12·8