remember the formula for circumference -> pi x d where pi is our favorite number in math i.e. 3.14159.... and d is the diameter. So your answer would be
3.14159 x 31 = 97.39 (rounded to decimal places) but your 31 should also have a unit of length with it.
31 feet 5 inches
Circumference is Pi x Diameter so do Circumference divided by Pi to get the diameter :)
diameter = circumference/pi
circumference = diameter * pi. Therefore, diameter = circumference ÷ pi.
Yes because: circumference/diameter = pi and circumference = pi*diameter
Circumference = Diameter*pi So diameter = Circumference/pi = 32*pi/31 = 32
31x3.1416=circumference
Circumference of circle: 31*pi = 97.389 inches rounded to 3 decimal places
The circumference of a circle with a 31 foot diameter is 97.4 feet, approx.
31 feet 5 inches
Circumference is Pi x Diameter so do Circumference divided by Pi to get the diameter :)
Diameter = Circumference/pi
diameter = circumference/pi
Circumference is pi times diameter. Diameter is circumference divided by pi. Diameter is twice the radius. Radius is half the diameter.
Since the circumference is Pi times the diameter then divide the circumference by Pi (3.14159) to get the diameter
The circumference of a 13.5 diameter circle is: 42.41(diameter x pi = circumference).
Circumference = pi*diameter So diameter = circumference/pi = 1.59 units