Question

Help me please with theses 3 answers

Answer 1

1) 69 units

2) 38 units

3)
`8\pi`

Explanation:

Remember:

Circumference formula:
`2\pi r`

1)

`2\pi (11)\\=22\pi \\=69.12`

2)

`2\pi r\\=2\pi (6)\\=12\pi \\=37.7`

3) (assuming question 3 is asking for the circumference in terms of pi)

`2\pi r\\=2\pi (4)\\=8\pi`

Hope this helps!