A p 4 D2. P Pi times the Radius squared. P r 2 p 64 201088 cm 2.
Area p Diameter 22.
Area of an elliptical arch. Determine the Area of a Circle Click here to choose anothe area calculator The area of a circle can be determined by using the following formula. Area of an arch given height and chord. For a circle or radius r the area is given by.