Circumference: Identifying and defining elements

Is it possible that the circumference of a circle is 8 meters and its diameter is 4 meters?

To calculate, we will use the formula:

$\frac{P}{2r}=\pi$

Pi is the ratio between the circumference of the circle and the diameter of the circle.

The diameter is equal to 2 radii.

Let's substitute the given data into the formula:

$\frac{8}{4}=\pi$

$2\ne\pi$

Therefore, this situation is not possible.

Impossible

Perhaps $P=\pi\times EF$

Yes

Is it possible for the circumference of a circle to be $10\pi$ if its diameter is $2\pi$ meters?

No.

Is it possible for the circumference of a circle to be $5\pi$ meters if its diameter 5 meters?

No.

Is it possible for a circle to have a circumference of 314.159 meters (approximately) and a diameter of 100 meters?

No.

Is it possible that a circle with a circumference of 50.6 meters has a diameter of 29 meters?

No.