Question

Find the exact circumference of a circle with the given radius. 5 inches C = 10 in. 25 in. 2.5 in.

Answer 1

Explanation:

circumference = 2 pi r

c = 2 * pi * 5 = 10 pi inches <======exact answer

Answer 2

`C = 10\pi \text{ in}`

Explanation:

We can find the circumference of a circle with a given radius using the formula:

`C=2\pi r`

↓ plugging in the given radius (5 in)

`C = 2\pi(5\text{ in})`

↓ executing the multiplication:
`2 \cdot 5 = 10`

`\boxed{C = 10\pi \text{ in}}`