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A cuboidal tin’ box opened at the top has dimensions 20 cm x 16 cm x 14 cm. What is the total area of metal sheet required to make 10 such boxes? |
Answer» Dimensions of cuboidal tin box are 20 cm x 16 cm x 14 cm, ...Area of metal sheet for 1 box = Surface area of cuboid = 2(lb + bh+hl) = 2(20 x 16+16 x 14+ 14 x 20) = 2(320 + 224 + 280) = 2(824) = 1648 cm2 ... Area of metal sheet required to make 10 such boxes = 10 x 1648 = 16460 cm2 |
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