A person walked 20 meters across a rectangular field along its diagonal. If the field's length measures 16 meters, what is the width of the field?

Explanation

Using the Pythagorean theorem, the diagonal (20 m) squared equals the sum of the squares of the length (16 m) and breadth. So, breadth = √(20² - 16²) = √(400 - 256) = √144 = 12 meters.