Question
Find the surface area of a cuboid whose:
Length $= 3.2\ m,$ breadth $= 30\ dm,$ height $= 250\ cm.$
Length $= 3.2\ m,$ breadth $= 30\ dm,$ height $= 250\ cm.$
✓
Answer
Length of cuboid $(l) = 3.2\ m = 32\ dm$
Breadth $(b) = 30\ dm$
Height $(h) = 250\ cm = 25\ dm$
$\therefore$ Surface area $= 2(1 × b + b × h + h × l)$
$=2(32 \times 30+30 \times 25+25 \times 32)\ dm^2$
$ =2(960+750+800)\ dm^2$
$=2 \times 2510$
$=5020\ dm^2$
Breadth $(b) = 30\ dm$
Height $(h) = 250\ cm = 25\ dm$
$\therefore$ Surface area $= 2(1 × b + b × h + h × l)$
$=2(32 \times 30+30 \times 25+25 \times 32)\ dm^2$
$ =2(960+750+800)\ dm^2$
$=2 \times 2510$
$=5020\ dm^2$
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