Surface area of a cube whose side is of length 20 cm is 400 cm 2-A- FalseB- True

The correct option is A False We know that, Surface area of cube =6×side^2 Here, side =20 cm ⇒ Surface area =6× 20^2=6× 400=2400 cm^2 The given statement is fa ...

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Standard IX

Mathematics

Total Surface Area of a Cube

Surface area ...

Question

Surface area of a cube whose side is of length $20 c m$ is $400 c m^{2}$ .

True

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False

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Solution

The correct option is B
False

We know that,

Surface area of cube $= 6 \times {side}^{2}$

Here, side $= 20 c m$

$\Rightarrow$ Surface area $= 6 \times 20^{2} = 6 \times 400 = 2400 c m^{2}$

The given statement is false.

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Surface area of a cube whose side is of length 20 cm is 400 cm2.

The correct option is B False We know that, Surface area of cube =6×side2 Here, side =20 cm ⇒ Surface area =6×202=6×400=2400 cm2 The given statement is false.

Surface area of a cube whose side is of length $20 c m$ is $400 c m^{2}$ .

The correct option is B
False

We know that,

Surface area of cube $= 6 \times {side}^{2}$

Here, side $= 20 c m$

$\Rightarrow$ Surface area $= 6 \times 20^{2} = 6 \times 400 = 2400 c m^{2}$

The given statement is false.