Find the surface area of a cuboid of length $5$ m,breadth $2$ m and height $3$ m

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Solution

Given : length $5$ m, breadth $2$ m and height $3$ m

Surface area of a cuboid $= 2 (l b + b h + l h)$

$= 2 (5 \times 2 + 2 \times 3 + 3 \times 5)$ sq.m

$= 2 (10 + 6 + 15)$ sq.m

$= 2 \times 31 = 62 c m^{2}$

$∴$ Surface area of a cuboid $= 62 c m^{2}$

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