Given the radius, the area of an circle A = πr2
Since the diameter d (which I assume is what you meant) is twice the radius, we can calculate
A = π(d/2)2
A = πd2/4
4A = πd2
4A/π = d2
√(4A/π) = d
2√(A/π) = d
(above, √ means square root)
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Area of a circle = pi*radius2
Area of a circle = Pi * radius2
Area of a circle = pi*radius2
Area of a circle is calculated by A=2*p*r where A represents the circle's area and r is the radius of the circle.
The area of a circle is the amount of space inside the circle. The area of a circle is calculated by multiplying pi(3.14159) by the radius squared.
Using 3.14 as Pi the area of circle is: 0
To find the area of the circle pi*radius*squared and subtract the area of the figure inside
the area of the circle is increased by 400%
Area of a sector of a circle.
Area of any circle = pi*radius2
The circle's area is 70,900,000 square units.
The circumference of a circle is the distance arround the edge of the circle. The area of a circle is how big the inside of the circle is.