Area is the measure of space inside a two-dimensional shape or surface. It quantifies how much surface is covered by the shape. We can calculate area for various shapes like squares, circles, and triangles. Area is typically measured in square units such as square meters or square inches.
Each shape has its own area formula. For a square, the area equals the side length squared. A rectangle's area is length times width. The area of a circle is pi times the radius squared. And for a triangle, the area is one half times the base times the height. These formulas help us calculate the exact amount of space inside each shape.
Area is always measured in square units. Common units include square meters, square centimeters, square inches, and square feet. The choice of unit depends on the length unit used to measure the shape's dimensions. For example, if we measure a square with sides of 3 units, its area would be 9 square units. Each small square in the grid represents one square unit of area.