The formula for the circumference (C) of a circle is C = 2πr where r is the radius.
But, the diameter (D) of a circle is twice the radius so this formula can be written C = πD.
C = π x 13 = 40.841 cm (3dp)
26
The circumference of 1.5 diameter is: 4.712
Circumference = Pi * diameter
To find the diameter of a circle when given the circumference, you can use the formula: circumference = π * diameter. Given that the circumference is about 46 inches, you can plug this value into the formula: 46 = π * diameter. Solving for diameter, you get diameter ≈ 14.62 inches.
Circumference = Diameter*pi So diameter = Circumference/pi = 32*pi/31 = 32
26
Diameter = Circumfrence/pi = 13/pi = 4.14 cm (approx)
The circumference of a circle if its radius is 13cm is: 81.68 cm
Circumference of the circle: 13*pi = 40.841 cm rounded up to 3 decimal places
Something that goes around
Radius = about 13cm Diameter = about 26cm
It is: 2*pi*13 = 81.681 cm
Circumference is Pi x Diameter so do Circumference divided by Pi to get the diameter :)
Circumference is pi times diameter. Diameter is circumference divided by pi. Diameter is twice the radius. Radius is half the diameter.
Diameter = Circumference/pi
diameter = circumference/pi
Since the circumference is Pi times the diameter then divide the circumference by Pi (3.14159) to get the diameter