area = pi x diameter squared/4 = 400 pi
diameter squared = 4 x 400 x pi/pi = 1600
diameter = sqrt 1600 = 40
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The diameter of a circle with an area of 37.68 is 6.92
To find area of a circle using diameter, you use this formuler. Area=pi(diameter/2)(diameter/2)
A circle with a diameter has an area of 50.265486543928724876568901 sq. ft.
The area of circle that has diameter of 14 centimeters is: 153.9 cm2
The area of a circle that has a 10 ft diameter is: 78.54 square feet.