Answer: 16π
Step-by-step explanation: To find the circumference of a circle with a diameter of 16, start with the formula for the circumference,
Circumference = 2πr
Notice that we are given the diameter instead of the radius. The radius is equal to half of the diameter. So here, the radius will be equal to half of 16 or 8.
So we can plug in 8 for r in the formula.
Circumference = (2) (π) (8)
Circumference = 16π
Therefore, the circumference of a circle with a diameter of 16 is 16π.
