Question

http://prntscr.com/idox1a
One question please!

Answer 1

@Shadow @563blackghost

Answer 2

@tigerlover

Answer 3

If you could post it i a picture, that would be fantastic!

Answer 4

Sorry I keep forgetting lol

Answer 5

Sorry, I confused myself

Answer 6

A=πr^2=π·10^2≈?

Answer 7

A=πr^2=π·10^2≈314.16

Answer 8

A=πr^2=π·5^2≈?

Answer 9

A=πr^2=π·10^2≈78.54

Answer 10

314.16-78.54=?

Answer 11

235.5

Answer 12

@Vocaloid @theDeviliscoming @Falconmaster Please correct me if I am wrong.

Answer 13

Ok thank you very much!