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A. TT (often written pi) is a mathematical constant whose value is the ratio between circumference and diameter of any circle in a Euclidean space, is the same value as the ratio of area of a circle and square of its radius B area=pi(r^2) circumference=2*pi*r
circumference = 2*pi*r and the area = pi*r^2
if you knew the circumferece of a circle u can figure out the area
yep I totally agree with dan815
Well, yeah. They both use pi and the radius for A. 2piR and piR^2
oops forgot the 2^2 in there
as r=circumference/2pi r=c/2pi for convenience so area = pi*(c/2pi)^2 =pi*c^2/(2pi)^2 =c^2/(4pi)
yeah that is answer for b
I mean I know the difference just a bit hard to put it in words.
okay well to start with you know circumference is a lennght when area is length^2
By length you mean radius or diameter?
the units of measurement
it means circumference is measured in one dimention just length and the area is measured in 2 dimensions length and width kind of deal
when you say the area is like 50 cm^2 that means 50 of 1 cm by 1 cm squares fit in your area
when you say 50 cm that means a line that is 50 cm long fit in it or 50 lines of 1 cm long together fit in it
area is squared and c is a line
ya somethinhg like that
but i dont think thats what theyre trying to ask.
our teacher never really touched that, so I'm afraid I won't get it correct bc it's not the answer she wants.
I think the answer she wants is about the actual formula for the 2.