The area of a circle is the space occupied by the circle in a two-dimensional plane, and it can be calculated using the formula A=πr2A=\pi r^2A=πr2, where rrr is the radius of the circle
. The area is expressed in square units, such as square meters (m²), square centimeters (cm²), or square inches (in²). Alternatively, the area of a circle can also be calculated using its diameter, which is twice the radius. The formula for calculating the area using the diameter is A=πd24A=\frac{\pi d^2}{4}A=4πd2, where ddd is the diameter of the circle
. For example, if a circle has a radius of 5 cm, its area would be π(5cm)2=78.54cm2\pi (5cm)^2=78.54cm^2π(5cm)2=78.54cm2. If you know the diameter of the circle, you can use the second formula to find the area: for a diameter of 10 cm, the area would be π(10cm)24=254.6cm2\frac{\pi (10cm)^2}{4}=254.6cm^24π(10cm)2=254.6cm2
