Answer:
Circumference = 30π inches
Explanation:
The formula for the circumference of a circle is given by:
C = πd, where
- C is the circumference,
- and d is the diameter.
Since the diameter is simply twice the radius, we can rewrite the circumference formula in terms of r (the radius):
C = π * 2r
C = 2πr
Now we can find the circumference of the circle in terms of π by substituting 15 for r in the circumference formula:
C = 2π * 15
C = 30π
Thus, the circumference of the circle is 30π inches.