To calculate the perimeter of a rectangle, you use the formula:

$P = 2 \times (\text{Length} + \text{Width})$

From the image, the length is 15 meters, and the width is 10 meters.

Substitute these values into the formula:

$P = 2 \times (15 + 10) = 2 \times 25 = 50 \, \text{meters}$

So, the perimeter of the rectangle is 50 meters.

Would you like more details or have any questions?

Here are five related questions for practice:

1. What would be the perimeter if the length was 20 meters and the width was 8 meters?
2. How would the perimeter change if the width was doubled?
3. Can you find the area of the same rectangle?
4. How does the perimeter of a square differ from that of a rectangle?
5. What is the formula for the diagonal of a rectangle?

Tip: For any rectangle, the perimeter formula always involves adding twice the length and width.