The circumference of a circle can be calculated using the formula C = πd, where C is the circumference and d is the diameter.
Given that the diameter of the circle is 30 centimeters, we can plug this value into the formula:
C = π × 30
Using an approximate value of π (pi) as 3.14, we get:
C ≈ 3.14 × 30
C ≈ 94.2 centimeters.
So, the circumference of the circle is approximately 94.2 centimeters.