A matchbox is 4 cm long, 3 cm broad and 2 cm in height. Its outer sides are to be covered exactly with craft paper. How much paper will be required to do so?
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Answer:
Hence, 39.5 cm2 of the craft paper will be needed to cover the matchbox.
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We have
Length of the match box =4cm
Breadth if the match box=2.5cm
and,
Height of the match box=1.5cm
Now, for the amount of paper required to cover the match box we need to calculate the surface are of the match box
We know that
Surface area fo the match box=2(lb+bh+lh)
=2(4×2.5+2.5×1.5+4×1.5)
=2(10+3.75+6)
=2×19.75
=39.5cm
2
Hence, The amount of paper required to covered the match box is 39.5cm
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