A scarf is in the shape of an equilateral triangle. Find its perimeter if each side measures 28 cm.

Answer

To find the perimeter of a scarf in the shape of an equilateral triangle where each side measures 28 cm, follow these steps:

### Step-by-Step Solution:

1. **Understand the shape**: The scarf is in the shape of an equilateral triangle, which means all three sides are equal in length.

2. **Identify the length of one side**: According to the problem, each side of the triangle measures 28 cm.

3. **Use the formula for the perimeter of an equilateral triangle**: The formula to calculate the perimeter (P) of an equilateral triangle is:
\[ P = 3 \times \text{side} \]

4. **Substitute the value of the side into the formula**:
\[ P = 3 \times 28 \, \text{cm} \]

5. **Perform the multiplication**:
\[ P = 84 \, \text{cm} \]

6. **State the final answer**: The perimeter of the scarf is 84 cm.