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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 $=10 cm$, breadth $=12 cm$ and height $=14 cm$.
✓

Answer

Length of cuboid ( 1 ) $=10 cm$
Breadth (b) $=12 cm$
Height (h) $=14 cm$
$\therefore \text { Surface area }=2(1 \times b+b \times h+h \times l)$
$=2(10 \times 12+12 \times 14+14 \times 10) cm^2$
$=2(120+168+140) cm^2$
$=2 \times 428=856 cm^2$

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