Question

What is the circumference of a circle with a diameter 9cm

Answer 1

The circumference of the circle with a diameter of 9cm is approximately 28.27cm.

Step-by-step explanation:

The circumference of a circle can be found using the formula C = πd, where C is the circumference and d is the diameter.

In this case, the diameter of the circle is given as 9cm. So, substituting the value of d into the formula, we have C = π(9cm).

Calculating the circumference, C = 3.14159...(9cm) = 28.27cm. Therefore, the circumference of the circle is approximately 28.27cm.

Answer 2

circumference is basically pi x diameter or pi x 2(radius)
in this situation it would be easier to multiple pi by 9 .
this would tell you what the circumference is .
pi x 9 = 28.2743338823

hope this helps you