The equation for determining the circumference of a circle is circumference = pi x diameter. So if the diameter is 5, then the circumference is pi * 5 = 15.71
If a circle has a diameter of 5 the circumference is: 31.4
Circumference = pi*diameter So diameter = circumference/pi = 1.59 units
diameter = 5/pi
pi * 5 = 15.7079633 Circumference = pi * Diameter
The circumference of a circle if the diameter is 5 inches is 15.7 inches.
The diameter of a circle who's circumference is five is: 1.592
20
Since the circumference is equal to the diameter times pi, you need to divide the circumference by pi in this case.
The formula for the circumference of a tree is Diameter * PI. If the circumference is known, then the diameter is equal to the circumference / PI. In this case, the diameter is equal to 5 foot 5.29 inches.
To get the diameter from the circumference of a circle, just divide by pi (which is 3.1415 to the first 5 digits).
If that's the diameter, the circumference is about 15.71 mm.