47.12 in.
D=15in
Just multiply the diameter by pi. In this case, by 3.14.
Diameter of a circle = circumference/pi
Diameter of a circle = circumference/pi
The circumference of a 13.5 diameter circle is: 42.41(diameter x pi = circumference).
A circle with a circumference of 11.25 has a diameter of: 3.581
If the diameter of a circle is 9 the circumference is: 28.3
If a circle has a diameter of 5 the circumference is: 31.4
If a circle has a diameter of 2.25, the circumference is: 7.069
If a circle has a diameter of 14, the circumference is: 43.98.
The circumference of a circle that has a diameter of 3.911 is: 12.29
The circumference of a circle that has the diameter of 8 is: 25.1