Question

The Circumference of a circle is 2 pie kilometers. What is the radius?

Answer 1

Radius would be 1 kilometer

Answer 2

The radius of the circle is 1 kilometer.

How did we get the value?

The circumference (C) of a circle is related to its radius (r) by the formula:

`\[ C = 2 \pi r \]`

In the given question, the circumference is given as
`\(2\pi\)` kilometers. So, we can set up the equation as follows:

`\[ 2\pi = 2 \pi r \]`

To find the radius (r), you can cancel out the common factor of
`\(2\pi\)` on both sides of the equation:

r = C/2π

r = 2π/2π

`\[ r = 1 \, \text{kilometer} \]`

So, the radius of the circle is 1 kilometer.