A closed box is 40 cm long, 50cm wide and 60cm deep . Find the area of the foil needed for covering it
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Step-by-step explanation:
speak of foil =2 (lb+bh+hl)
=2 (40×50+50×60+60×40)
=2 (2000+3000+2400)
=2 (7400)
=14800cm^2
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