Question

Answer pleasee been stuck on these type of problems all night! :)​

Answer 1

C = 90 units²

Explanation:

Since we are using 3 for π, simply substitute the information into the equation:

C = 2(3)(15)

C = 90 units²

Answer 2

ok

`\pi = (22)/(7) or \: 3.142`

Explanation:

`c = 2\pi \: r \\ c = 2 * (22)/(7) * 15 \\ 94.28`