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Mensuration - II (Volumes and Surface Areas of a Cuboid and a Cube) — Maths STD 8 — Question

Maharashtra BoardEnglish MediumSTD 8MathsMensuration - II (Volumes and Surface Areas of a Cuboid and a Cube)3 Marks
Question
Find the surface area of a cuboid whose:
Length $=3.2 m$, breadth $=30 dm$, height $=250 cm$.
✓

Answer

Length of cuboid ( 1$)=3.2 m=32 dm$
$\text { Breadth }(b)=30 dm$
$\text { Height }(h)=250 cm=25 dm$
$\therefore \text { Surface area }=2(1 \times b+b \times h+h \times l)$
$=2(32 \times 30+30 \times 25+25 \times 32) dm^2$
$=2(960+750+800) dm^2$
$=2 \times 2510=5020 dm^2$

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