What is surface area of cube ?

(l \times b \times h)

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6 l^{2}

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(l \times b)

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None of these

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Solution

The correct option is D $6 l^{2}$

Let $l$ be the side of the cube. We know that, each side of cube is square.
$\Rightarrow$ Area of square $= l^{2}$
$\Rightarrow$ Total surface of a cube $= 6$
$∴$ Total surface area of a cube $= 6 l^{2}$

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Similar questions

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Q. The total surface area of a cuboid of length

l

, breadth

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and height

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is ________.

What is the formula for the lateral surface area of the given frustum:

Where,
$R_{1}$ = radius of the base
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$R_{2}$ = radius of the top surface
$l$ = length of lateral height of cone - lateral height of frustum(s) (L - s)

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What is surface area of cube ?

The correct option is D 6l2Let l be the side of the cube. We know that, each side of cube is square.⇒ Area of square =l2⇒ Total surface of a cube =6∴ Total surface area of a cube =6l2

The correct option is D $6 l^{2}$

Let $l$ be the side of the cube. We know that, each side of cube is square.
$\Rightarrow$ Area of square $= l^{2}$
$\Rightarrow$ Total surface of a cube $= 6$
$∴$ Total surface area of a cube $= 6 l^{2}$