This math topic focuses on using the Pythagorean theorem. It includes finding the value of a missing side (labeled as 'a', 'b', or 'c') in a right triangle given the other sides' values, squared and summed. Specifically, students learn to manipulate equations to solve for the missing length, then identify this integer-value length among multiple choice options. This practice reinforces foundational skills in using the Pythagorean theorem, essential for understanding right triangle geometry.