The surface area of a cuboid of dimensions 10 m - 12 m - 8 m isA- 582 m 2B- 572 m 2C- 598 m 2D- 592 m 2

The correct option is D 592 m2 Surface area of a cuboid = 2(lb + bh + lh), where l = length, b nbsp;= breadth and h = height Given: l nbsp;= 10 m, b nbsp ...

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Standard VIII

Mathematics

Total Surface Area of Cuboid

The surface a...

Question

The surface area of a cuboid of dimensions $10 m \times 12 m \times 8 m$ is

572 m²

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592 m²

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598 m²

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582 m²

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Solution

Given:
The dimensions of cuboid are $10 m \times 12 m \times 8 m$
$\Rightarrow l = 10 m, b = 12 m, h = 8 m$
Surface area of a cuboid $= 2 (l b + b h + l h)$ ,

Surface area of a cuboid

$= 2 (10 m \times 12 m) + (12 m \times 8 m) + (10 m \times 8 m)$
$= 2 (120 m^{2} + 96 m^{2} + 80 m^{2})$
$= 2 (296 m^{2})$

$= 592 m^{2}$
Hence, Option D is correct.

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The surface area of a cuboid of dimensions 10 m×12 m×8 m is

Given:The dimensions of cuboid are 10 m×12 m×8 m⇒l=10 m, b=12 m, h=8 mSurface area of a cuboid =2(lb+bh+lh), Surface area of a cuboid =2(10 m×12 m)+(12 m×8 m)+(10 m×8 m)=2(120 m2+96 m2+80 m2)=2(296 m2) =592 m2Hence, Option D is correct.

The surface area of a cuboid of dimensions $10 m \times 12 m \times 8 m$ is