Chat with our AI personalities
C= pi * D This is the formula for circumference.
circumference of the circle = 4*pi cm
166.42 ft
If you are talking about circumference & diameter, the answer is the circumference divided by pi. So 100 divided by pi=31.830988618379067153776752674503=d
If the following are the definitions of the symbols referenced in the question: c = circumference r = radius d = diameter l = length w = width then NONE of the formulas listed in the question is correct. The circumference of a circle is (pi) times d. d is the diameter, (pi) = 3.14156 (rounded)