A cuboidal tin box opened at the top has dimensions 20 cm × 16 cm × 14 cm. What is the
total area of metal sheet required to make 10 such boxes?
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lbh=20×16×14cm
area of 1 metal box=2h(l+b)+lb
=2×14(20+16)+20×16
=2×14×36+320
=1008+320
=1328cm^2
total are required for makind 10 metal boxes
=1328×10=13280cm^2
PLZ MARK IT AS BRAINLIST
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