This free area calculator determines the area of a number of common shapes using both metric units and US customary units of length including rectangle triangle trapezoid circle sector ellipse and parallelogram. A square that is 1 meter on each side is 1 square meter. Figure out the area of squares using the formula determine the side lengths find the length of the diagonals and calculate the perimeter using the area as well.
The grey space in the figure below is the area of the square.
If this is 2 then this is going to be 2. Learn more at Area of Plane Shapes. The rectangle has an area of 15. The square meter is the basic unit of area of the Metric System.