A cube is a three-dimensional figure as shown in below figure. It has six faces and all of them are identical squares. The length of an edge of the cube is given by $l$. Find the formula for the total length of the edges of a cube.
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Given:

The length of an edge of the cube is given by $l$.

To do:

We have to find the formula for the total length of the edges of the cube.

Solution:

Length of the edge of the cube $= l$

Number of edges of the cube $= 12$

Therefore,

The total length of the edges $=$ Number of edges $\times$ Length of an edge

$=12\times l$

$=12l$

The formula for the total length of the edges of the cube is $12l$.

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Updated on: 10-Oct-2022

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