A atchbox is 4 cm long, 2.5 cm broad and 1.5 cm in height. Its outer sides are to be covered exactly with craft paper. How much paper will be required to do so? 3.
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The paper's volume should be 15 so that it will cover the matchbox exactly
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Length of matchbox=4cm
Bredth of matchbox=2.5cm
Height of matchbox=1.5cm
Area of upper side and lower side =2(l*b)=2(4×2.5)=8×5=40
Area of walls of matchbox
=2(l+b)×h=2(4+2.5)×1.5=(8+5)×1.5=13×1.5=19.5
Total area=40+19.5=59.5(Ans)
Bredth of matchbox=2.5cm
Height of matchbox=1.5cm
Area of upper side and lower side =2(l*b)=2(4×2.5)=8×5=40
Area of walls of matchbox
=2(l+b)×h=2(4+2.5)×1.5=(8+5)×1.5=13×1.5=19.5
Total area=40+19.5=59.5(Ans)
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