Question

Find the length of the diameter of circle C.

1"
2"
4"

Answer 1

The diameter is the radius doubled. So, the radius CK is 2, so the diameter would be 4.

Answer 2

The diameter of a circle can be found with the formula:

`Diameter = 2* Radius`

So diameter is two times or twice the radius.

In the given figure, in circle C , the measure of radius KC is 2 inches.

As we know diameter is two multiplied by radius, so we can multiply our radius KC with 2 to get the diameter of circle C.

Plugging the value of radius in the given formula we have,

`Diameter = 2* 2`

`Diameter = 4`

So the diameter of circle C is 4 inches.

Answer: Diameter is 4 inches for the circle C. Last option 4" is the right choice.