To work out the circumference of a circle, you need to do pi multiplied by the diameter.
The diameter is the distance from one end to the other.
Pi = 22/7 or 3.141...
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The circumference of 8,000 is: 25,130.
circumference
The circumference of a 36 circle is: 113.1 (diameter x pi = circumference).
Circumference isn't squared OR cubed. However, Surface Area is squared and so is Area. So Circumference is just Circumference :)
The circumference of a 24cm circle is: 75.4 cm(diameter x pi = circumference).