circumference of a circle with a diameter of 15
The circumference of a circle can be calculated using the formula C = πd, where C is the circumference, π is approximately 3.14159, and d is the diameter of the circle.
Given that the diameter of the circle is 15, we can plug this value into the formula:
C = πd
C = 3.14159 * 15
C = 47.12385
Therefore, the circumference of a circle with a diameter of 15 is approximately 47.12385 units.