circumference & diameter to pi

[Edwin]

Can someone show me how to demonstrate in writing the
RELATIONSHIP OF CIRCUMFERENCE & DIAMETER TO Pi ?

 

[Gene]

I suppose you don't mean circumference equals diameter times pi
but I'm unsure what you do mean.

There is an interesting write-up at
http://mathforum.org/dr.math/faq/faq.pi.html

 

[purplemathpuppy13]

here is the formule there are two:

pi= 3.14(i cant find the sign on my keyboard)

pi * diameter or pi * r(squared)

the radius is twice the diametr so u can use either one if they just give you radius you can double it and use the diameter formula it is easier to caculate...........hope i helped

 

[tkhunny]

diameter = 2*radius

circumference = pi*diameter = pi*(2*radius)

radius = diameter/2

area = pi*(radius)² = pi*(diameter/2)²

 

[skeeter]

here is the formule there are two:

pi= 3.14(i cant find the sign on my keyboard)

pi * diameter or pi * r(squared)

[pi]r² is the formula for area of a circle, not the circumference.

the radius is twice the diametr so u can use either one if they just give you radius you can double it and use the diameter formula it is easier to caculate...........hope i helped

for any circle ... pi = C/d.

 

[purplemathpuppy13]

oh my bad, i meant 2 * pi*r sorry got my formulas mixed up i just looked at my eighth grade formula sheet

 

[Edwin]

Thanks for the help, what is is , is that I have to do some drawings of different things relating to pi on a t-shirt (Math project), I also found this,
to show th relationship of circumference & diameter to pi

circumference distance around
---------------- ------------------ = pi
diameter distance across


what do you think? should this be ok?

 

[pka]

of different things relating to pi on a t-shirt (Math project),

Here is the most interesting fact about pi I know:
\(\displaystyle \L
e^{i\pi } + 1 = 0\).