Question

suppose the diameter of a circle is 16 units.What is the circumference?

Answer 1

Answer:

16$\pi$

Step-by-step explanation:

Equation for the circumference of a circle

C = 2$\pi$r or C = d$\pi$

Insert the diameter into the equation

C = 16$\pi$

Answer 2

Answer:

$\approx$ 50.24 units

Step-by-step explanation:

Let's remember that the formula of the circumference of a circle is

C = π * d, where d is the diameter of the circle and π $\approx$ 3.14

As we know the diameter is 16 units, we just replace the d of the formula with 16.

Therefore, C = π * 16 units $\approx$ 3.14 * 16 units = 50.24 units

The circumference of the circle is approx 50.24 units.