Circumference = 2 x {pi} x radius
=> radius = circumference / (2 x {pi})
=> radius = 20pi / (2pi)
= 10
area = {pi} x radius2
= {pi} x 102
= 100pi
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radius = 20pi/2pi = 10 units area = pi*102 = 100pi square units
If the circumference of a circle is 6.28 then its area is about 3.138 square units
The area of circle with a circumference of 20 is: 31.83 units squared.
The circumference of a circle with an area of 3 acres is: 1,281 feet.
what is the area and circumference of a circle with a diameter of 55 centimeters