The area of a circle is a length times a length so we say its dimension is length 2. To calculate diameter from the area divide area by pi value pi 227 or 314. The formula used to calculate circle area is.
This goes back to manipulating the formula for finding the area of a circle A pr 2 to get the diameter.
Area of a circle formula The formula for the area of a circle is p x radius2 but the diameter of the circle is d 2 x r 2 so another way to write it is p x diameter 22. Area of a circle is the region occupied by the circle in a two-dimensional plane. A pr2 A p r 2 The answer will be square units of the linear units such as mm2 m m 2 cm2 c m 2 m2 m 2 square inches square feet and so on. The formula used to calculate the circle diameter is.