The sum of the lengths of all the edges of a cube is 60 cm, then the length of the edge of the cube is

Explanation

To find the length of the edge of a cube when the sum of the lengths of all its edges is given, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the properties of a cube**: A cube has 12 edges, and all edges are of equal length.

2. **Let the length of each edge be denoted as 'a'**.

3. **Calculate the total length of all edges**: Since there are 12 edges in a cube, the total length of all edges can be expressed as:
\[ \text{Total length of edges} = 12 \times a \]

4. **Set up the equation**: According to the problem, the sum of the lengths of all the edges is 60 cm. Therefore, we can set up the equation:
\[ 12a = 60 \]

5. **Solve for 'a'**: To find the length of one edge, divide both sides of the equation by 12:
\[ a = \frac{60}{12} \]

6. **Calculate the value**:
\[ a = 5 \text{ cm} \]

7. **Conclusion**: The length of each edge of the cube is 5 cm.

### Final Answer:
The length of the edge of the cube is **5 cm**.

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