A closed box of dimensions 40 cm x 20 cm x 5 cm is made from a sheet of metal. How much sheet of metal is required?
IT'S VERY MUCH ARE
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Answer:
total surface area = 2(lb + bh + hl)
=. 2(40×20+20×5+5×4)
= 2 × (800+100+200)
= 2 × 1100
= 2200
hence 2200sq.m will be required
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