Question

Help plz plz plz plz plz plz,

Answer 1

6.28

Explanation:

Its the formula 2πr. The diameter is 2 and the radius is half of 2 so 1. Just plug in 1 for r and multiply everything together.

Answer 2

6.28 km

Explanation:

Circumference formula:

C = 2πr

To find r:

r = d/2

r = 2/2

r = 1

Work:

C = 2(3.14)(1)

C = 6.28