If the perimeter of a rhombus is 40 m, find the length of its side.

Answer

To find the length of the side of a rhombus given its perimeter, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the formula for the perimeter of a rhombus**:
The perimeter \( P \) of a rhombus can be calculated using the formula:
\[ P = 4 \times \text{side} \]

2. **Identify the given value**:
From the problem, we know that the perimeter \( P \) is 40 meters.

3. **Set up the equation**:
Substitute the given perimeter into the formula:
\[ 40 = 4 \times \text{side} \]

4. **Solve for the length of the side**:
To find the length of the side, divide both sides of the equation by 4:
\[ \text{side} = \frac{40}{4} \]

5. **Calculate the value**:
Performing the division gives:
\[ \text{side} = 10 \text{ meters} \]

6. **State the final answer**:
Therefore, the length of each side of the rhombus is 10 meters.

### Final Answer:
The length of the side of the rhombus is 10 meters.

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