Squaring is a mathematical operation where a number is multiplied by itself. For example, squaring the number 3 results in 3 × 3 = 9. This operation is often represented using an exponent, where the number is raised to the power of 2. Squaring is commonly used in various fields, including geometry and physics. In geometry, the area of a square is calculated by squaring the length of one of its sides. For instance, if the side length is 4, the area is 4 × 4 = 16 square units.