Question

What is the area of of a circle with the circumference of 6.28

Answer 1

Area of a circle =
`\pi r^(2)`
Circumference of a circle =
`2 \pi r` or
`\pi d`

Circumference =
`\pi d` = 6.28
d = 2
r = 1

Area =
`\pi (1)^(2)` = 3.14

Answer 2

Circumference =
`2 \pi r`
6.28 =
`2 \pi r`
r = 1

Area =
`\pi r^2`
Area =
`\pi (1)`
Area = 3.14

Hope that helps :)