Surface area of a cuboid is given by A -2 lb - bh - hl - If 1-16 cm - b -5 cm and h -2 cm- then its surface area isA- 122 cm 2B- 222 cm 2- 244 cm 2D- 224 cm 2

The correct option is C 244 cm^2Given nbsp;l = 16 cm, b = 5 cm and h = 2 cm. A = 2(lb + bh + hl) Substituting the value of l, b and h in the above equat ...

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Standard VII

Mathematics

Value of an Expression

Surface area ...

Question

Surface area of a cuboid is given by $A = 2 (l b + b h + h l) .$
If $l = 16 cm, b = 5 cm$ and $h = 2 cm,$ then its surface area is ___.

122 c m^{2}

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222 c m^{2}

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224 c m^{2}

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244 c m^{2}

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Solution

The correct option is D $244 c m^{2}$
Given $l = 16 cm, b = 5 cm$ and $h = 2 cm .$
$A = 2 (l b + b h + h l)$
Substituting the value of $l, b$ and $h$ in the above equation, we get,
$A = 2 (16 \times 5 + 5 \times 2 + 16 \times 2)$
$= 2 (80 + 10 + 32)$
$= 244 c m^{2}$

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Surface area of a cuboid is given by A=2(lb+bh+hl). If l=16 cm, b=5 cm and h=2 cm, then its surface area is ___.

The correct option is D 244cm2Given l=16 cm, b=5 cm and h=2 cm. A=2(lb+bh+hl) Substituting the value of l,b and h in the above equation, we get, A=2(16×5 +5×2 +16×2) =2(80+10+32) =244cm2

Surface area of a cuboid is given by $A = 2 (l b + b h + h l) .$
If $l = 16 cm, b = 5 cm$ and $h = 2 cm,$ then its surface area is ___.

The correct option is D $244 c m^{2}$
Given $l = 16 cm, b = 5 cm$ and $h = 2 cm .$
$A = 2 (l b + b h + h l)$
Substituting the value of $l, b$ and $h$ in the above equation, we get,
$A = 2 (16 \times 5 + 5 \times 2 + 16 \times 2)$
$= 2 (80 + 10 + 32)$
$= 244 c m^{2}$