* a² + b² = c²
Where:
* a and b are the lengths of the two sides of the rectangle (15 meters and 10 meters)
* c is the length of the diagonal (what we want to find)
1. Plug in the values: 15² + 10² = c²
2. Calculate: 225 + 100 = c²
3. Simplify: 325 = c²
4. Find the square root: c = √325 ≈ 18.03 meters
Therefore, the diagonal measurement of a 15 meters by 10 meters rectangle is approximately 18.03 meters.
