A l w A l w. To find the area of simple shapes like a square or the area of a rectangle you only need its width w w and length l l or base b b. L w l w l.
Area pi r2 where r radius.
Area of a Circle Area of a circle is the region occupied by the circle in a two-dimensional plane. The area of a parallelogram is found using this formula. The area of a figure is the number of unit squares that cover the surface of a closed figure. S s s s slength of one side Perimeter of a rectangle.