Question

My circumference is 20 cm what is my diameter and radius?

Answer 1

The diameter of the circle would be: 6.4 cm. rounded or 6.36619772 cm.

The radius of the circle would be: 3.2 cm. rounded or 3.18309886 cm.

Explanation:

The diameter can be solved using: D =
`(C)/(\pi )`

So, the first step would be : D =
`(20)/(\pi )`

Then : D = 20 ÷
`\pi`

Finally, the answer will be : 6.36619772 cm. or 6.4 cm.

The Radius can be Solved using: r =
`(c)/(2\pi )`

The first step would be : r =
`(20)/(2\pi )`

Then : 20 ÷ 6.2831853071796 (2
`\pi`)

Finally, the answer will be : 3.18309886 cm. or 3.2 cm.