A circle with a radius (d/2) of 15 cm has a circumference of 94.2 cm
The diameter of a circle with a circumference of 15 centimeters is about 4.775 cm
circumference = 15*pi cm
Circumference of a circle = 2*pi*radius or diameter*pi
Its circumference is: 15*pi cm Its area is: pi*7.5^2 square cm
If the radius of a circle is 15 cm, the circumference is: 94.2 cm
A circle with a radius (d/2) of 15 cm has a circumference of 94.2 cm
The diameter of a circle with a circumference of 15 centimeters is about 4.775 cm
If 15 cm is the diameter then circumference is pie x diameter which is 3.14 x15
circumference = 15*pi = 47.124 cm rounded to 3 dp
circumference = 15*pi cm
Circumference of a circle = 2*pi*radius or diameter*pi
Its circumference is: 15*pi cm Its area is: pi*7.5^2 square cm
566cm
There are various ways of measuring circles, since a circle has a radius, a diameter, and a circumference, so your question asking how to divide a circle to 15 cm is not as precisely stated as it might be. You can use a segment of a circumference to get 15 cm, by taking the appropriate wedge out of the circle, but even then, unless we know what the radius of the circle is, we cannot tell you what angle is needed to obtain the wedge you want, with a 15 cm circumference.
Diameter = Circumference/pi = 14.99 cm
It is very easy math!