5. A closed box is 40 cm long, 50 cm wide and 60 cm deep. Find the
area of the foil needed for covering it.
6. The total surface
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Answer:
area of foil needed= total surface area of box
SA=2×( 40*50+50*60+60*40)
=2×7400
=14800 cm²
=1.48 m²
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