The equation to find the area of a circle is pi x r2, let us just keep pi as pi, if the radius is 7, 72 is 49, so in terms of pi, the answer would be 49 pi, then one would just multiply 49 to whatever digit of pi you wanted to. answer is 153.86 :)
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Area of any circle = pi*radius squared
The area is 154 cm2
The area of a circle is equal to pi*r2, where pi is the radius. In this case, the area is equal to pi*(7 feet)2, which is about 154 square feet.
A circle with a radius of 7 meters has an area of 153.94 square meters.
Using 3.14 as Pi the area of circle is: 153.86