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Mathematics 17 Online
OpenStudy (g33k):

i needed to edit this

hartnn (hartnn):

so, side of square 's' = diameter of the circle '2r' where 'r' is the radius of the circle. does this make sense?

OpenStudy (g33k):

Yeah

hartnn (hartnn):

Area of square = \(s^2\) plug in s = 2r here, and find the area in terms of 'r'

OpenStudy (g33k):

okay

hartnn (hartnn):

what did u get?

OpenStudy (g33k):

4r? I'm horrible at math

hartnn (hartnn):

good attempt! \((2r)^2 = 2^2 r^2 = 4r^2 \)

hartnn (hartnn):

and are of circle, we already know as \(\pi r^2\)

hartnn (hartnn):

so taking the ratio: \(\Large \dfrac{4r^2}{\pi r^2} = ... ?\)

hartnn (hartnn):

just cancel out the \(r^2\) !

hartnn (hartnn):

yesss! or you can keep it as \(\dfrac{4}{\pi}\) only

OpenStudy (g33k):

Hooray I knew something haha

hartnn (hartnn):

you're not Jon Snow! you definitely know something :P

OpenStudy (g33k):

So is that it? @hartnn

hartnn (hartnn):

yes! thats it.

OpenStudy (g33k):

Okay, thanks :)

hartnn (hartnn):

welcome ^_^

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