PI times the DIAMETER
3.14 to the 2 power
The formula for the circumference of a circle is pi * diameter or (2 radius.)
It is the formula for finding the circumference of a circle which is the same as 2*pi*radius
the circumference is two times the radius, or 2r. so if the radius was 3, the circumference would be 6. if the radius was 4, the circumference is 8.
There is no circumference of a cone, but, we only do the circumference of the circle. the formula for the circle is pi times D. D= Diameter
Circumference of a circle = (pi) x (diameter)
Divide the circumference by 2*pi because 2*pi*radius = circumference
2r+pi r
PI times the DIAMETER
3.14 to the 2 power
The formula for the circumference of a circle is pi * diameter or (2 radius.)
It is the formula for finding the circumference of a circle which is the same as 2*pi*radius
4*pi*r2. because surface area is equal to circumference of circle.
Circumference of a circle is (pi * diameter). Area of a circle is (pi * r2).
Circumference = 2 x pi x radius
the circumference is two times the radius, or 2r. so if the radius was 3, the circumference would be 6. if the radius was 4, the circumference is 8.