This math topic focuses on applying the Pythagorean theorem to calculate the side lengths of squares, given their diagonal lengths. Each problem presents a square with a known diagonal measurement and requires finding the sides' lengths in decimal form. The problems systematically increase the complexity by varying the diagonal measures, allowing practice of the theorem in progressively challenging scenarios. The topic is part of a larger unit dedicated to practicing Pythagorean theorem principles, specifically tailored for understanding the relationship between the square's diagonal and its side lengths.