18 Oct '04 21:01>
How do you find the area of a circle without using calculus? It's the way the Greeks did it. If anyone knows the answer, don't post it...just post if you can figure it out without having heard the answer before.
Originally posted by AThousandYoungcalculus? Area? I can do it in algebra. now if i could just find the pi sign on my keyboard...
How do you find the area of a circle without using calculus? It's the way the Greeks did it. If anyone knows the answer, don't post it...just post if you can figure it out without having heard the answer before.
Originally posted by royalchickeni'm not, and as thousand-young seems to be thinking of that one, i'll give the one i learned in eight grade:
If you're thinking of the one we worked out at lunch last year, that one really involved calculus, because we took a limit as the number of sides of the n-gon increased without bound.
Originally posted by royalchickenYeah that's the one I was thinking of, but it does involve the calculus.
If you're thinking of the one we worked out at lunch last year, that one really involved calculus, because we took a limit as the number of sides of the n-gon increased without bound.
Originally posted by telerionIf you were at at Kennebunk High School while I was, and you ever wanted to chat about maths for some reason, fearlessleader was the only one to speak to. He's also generally awesome 🙂.
Yeah that's the one I was thinking of, but it does involve the calculus.
Originally posted by fearlessleaderi'm sorry, those relations SHOULD read:
area of:
x^2+y^2+z^2=r^2
is the same as the area of:
x^2+y^2=r^2 AND r>z>-r NOT x^2+y^2=z^2
can anyone find a 2 equivilant? that might give an answer.
Originally posted by AThousandYoungThink of centering the circle on a Cartesian plane. Basically, in the limit as I -> infinite, you are adding up the "area" of an infinite number of rays extending from the origin to a point on the circle, that is from (0,0) to some (x,y) such that x^2 + y^2 = r^2.
[b]of triangles with angles:90,90, and 360/I
I'm sorry, I don't understand. The angles of the triangles are 90 degrees over infinity x2 and 360 degrees over infinity? That makes no sense to me.