How do you find the diameter of a circle if given the circumference?

Answer 1

Divide it by the constant pi (=3.14). That must work always.

Answer 2

C=2(pi)r 2r=d

So dividing the circumference by pi would give you your diameter (divide by 2 if you want your radius)

Answer 3

Since circumference C=2(pi)(radius) = (pi)(diameter),

where pi = 3.14159 (approximately)

diameter = C/(pi)

Answer 4

Divide it by the constant pi (=3.14). This is the mathematical solution.

Answer 5

c = pi*r^2 or c=pi*d

where;
pi = 3.142............