help....trivia sheet....
2007-03-14 01:16:54 · 6 answers · asked by Vicy 1 in Science & Mathematics ➔ Mathematics
I'll be using the letter P for pi
r for Radius
Circumference of Circle =2Pr
Half of circumference=Pr
But,we know half of circumference=P
so,
Pr=P
P*1=P(This is the equation)
We know value of P=22/7
Circumference of circle=2Pr
2*22/7*1
=44/7
=6.28
½Circumference=3.14
2007-03-14 01:30:46 · answer #1 · answered by oolala 2 · 0⤊ 0⤋
Pi = (about) 3.14159
That would be half the circumference of a circle with a radius of 1. Obviously, the whole circumference would be 2Pi
2007-03-14 08:25:53 · answer #2 · answered by blighmaster 3 · 0⤊ 0⤋
The unit circle -- the circle with a radius of one unit. 180 degrees is pi units around the circle. 360 degrees is 2 pi. What exactly are you asking?
2007-03-14 08:29:06 · answer #3 · answered by jungleroy59 1 · 0⤊ 0⤋
Well, that's the formula.
Circumference = 2Ïr
C/2 = Ïr
But r = 1, so
C/2 = Ï
The circumference of the circle is 2Ï.
2007-03-14 08:24:50 · answer #4 · answered by Anonymous · 0⤊ 0⤋
it's pi*pi or 1
2007-03-14 08:26:29 · answer #5 · answered by yamini p 1 · 0⤊ 0⤋
pi = 3.14
2007-03-14 08:36:14 · answer #6 · answered by physicist 4 · 0⤊ 0⤋