Question

The volume of a cube is 64 cm. Find the length of its edge.​

Answer 1

Answer:

Volume of a cube = (edge )³

Volume of the cube = 64 cm³ .

So, (egde)³ = 64

= edge = ³√64

= edge = 4 .

∴The length of its edge is 4 cm .

Answer 2

The length of the cube's edge is 4cm.

Given:

Volume of the cube = 64cm

To Find:

Length of its edge.

Solution:

The volume of a cube is the number of cubic units, occupied by the cube completely.

If the length, width, and height of the cube are equal to ‘a’, then;

The volume of the cube = $a \times a \times a$

$\implies V = a^3\\\\\implies 64 = a^3\\\\\implies \sqrt[3]{4} = a^3\\\\\implies a = 4$

Therefore the edge of the cube is 4cm.

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