Question

A square piece of cloth, which is 10 meters on a side, is cut across the diagonal to form two right triangles. What is the length of the diagonal cut?

Answer 1

A² + B² = C²
So 10² + 10² is 200
The square root of 200 is about 14.14
10² + 10² ≈ 14.14²

Hope that helps :)