This math topic focuses on determining the missing side lengths of rectangles using the given area and the ratio between the sides, including fractional values. It is a part of a broader introductory unit on area and perimeter logic, aimed to enhance problem-solving skills related to geometry. The exercises require applying formulas and logical reasoning to find correct dimensions, engaging students in practical geometry applications. Each question presents a different rectangle with specific conditions to challenge and develop students’ understanding of area calculations and dimensional relationships in geometrical shapes.