These shapes all have the same area of 9. Area confuses a lot of people because the area is measured in square units regardless of shape. To find the area of a rectangle multiply the length by the width.
Area is defined as the number of square units that covers a closed figure.
Area 400m 2 140m 2. The amount of space inside the boundary of a flat 2-dimensional object such as a triangle or circle or surface of a solid 3-dimensional object. It has a length and a width. Easy-to-understand definitions with illustrations and links to further reading.