Question

Find the total surface area of a cube whose volume is 343 cm³.
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Answer 1

Answer:

A=294cm²

I hope it helps you

Answer 2

☆ Solution ☆

Given :-

• volume is 343 cm³.

To Find :-

• The total surface area of a cube.

Step-by-Step-Explaination

The side of the cube be a volume = ${a}^{3}$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:\:\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:343 = {a}^{3}$

$\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$7 = a

So,

Side of the cube is 7 cm.

Total surface area = ${a}^{2}$

= 6${(7)}^{2}$

= 6 (49)

=294cm²

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☆ Additional Information ☆

Volume of cube = ${a}^{3}$

Area of four walls = 2 ( l + b ) × ${h}^{2}$

Lateral surface area = 2 ( l + b ) × ${h}^{2}$

Total surface area = 2 ( lb + bh + lh)³

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