Question

A circle has a circumference of 654 units. Approximate the diameter of the circle.

Answer 1

When you find a diameter of a circle, you probably used this formula:
C = $\pi$d

If we algebraically manipulate the formula, we get it to find the diameter with a circumference.

Divide both sides by $\pi$.

C / $\pi$ = $\pi$d / $\pi$.
$\frac{C}{ \pi }$ = d
d = $\frac{C}{ \pi }$

We know the circumference is 654 and we will use 3.14 for $\pi$.

Plug in the values.

d = $\frac{654}{3.14}$
d ≈ 208.3

So, the diameter of the circle is about 208.3 units.

Answer 2

Do u have a formula chart if not that would help you get your answer