Final answer:
The circumference of a circle with a radius of 4.5 centimeters is approximately 28.27 centimeters.
Step-by-step explanation:
The circumference of a circle can be calculated using the formula C = 2πr, where C is the circumference and r is the radius.
To find the circumference of the circle with a radius of 4.5 centimeters, substitute the value of the radius into the formula:
C = 2π(4.5)
C ≈ 2 × 3.14159 × 4.5
C ≈ 28.27 centimeters