Circles and pie

  • Thread starter thomas576
  • Start date
  • #1
20
1
circles.... and pie

ok so i found this site and im learning about circles now :) http://www.mathgoodies.com/lessons/vol2/circumference.html

it says pie is 3.14 which is what you get when you divide the outer measurement of the circle by the diameter (pie being 3.14 as per his homework)

c/d=3.14 the question reads
in this problem i have used & to mean pie cuz i don't know how to make that symbol
circumference of a circle is 6&
find the radius....

so

6&/d=&

6(3.14)/d=3.14
18.84/d=3.14
18.84=3.14d
18.84/3.14=d
6=d
diameter is 2x radius so raidus is 3

sound right?
thanks again guys and gals!
 

Answers and Replies

  • #2
2,210
1
Its right.

You couldve saved some time by dividing both sides by pi in the first step
 
  • #3
396
2
Just for reference, it is written pi. You can get the pi symbol by using LaTeX code. You write tex or itex in brackets and close them with /tex or /itex in brackets. Write \pi inbetween the code to get the symbol to show up.

Like this: [tex]\pi[/tex], click the symbol to see the code to write it.
 
  • #4
Ouabache
Science Advisor
Homework Helper
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thomas576 said:
in this problem i have used & to mean pie cuz i don't know how to make that symbol circumference of a circle is 6&

I like pie :tongue2: However, I believe you are referring to the mathematical constant which whozum correctly spelled pi ..

If you want to make the symbol [tex] \pi [/tex] click on the one I made and a popup window will show the syntax you can use, to create it)

(while I was writing this, i see Candyman has a similar suggestion, I wonder if he/she also likes pie :tongue2: )
 
  • #5
FredGarvin
Science Advisor
5,067
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mmmmm......pie......
 
  • #6
arildno
Science Advisor
Homework Helper
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FredGarvin said:
mmmmm......pie......
You are too late, Fred. I sneaked up on it all unnoticed yesterday.
You're welcome to the left-overs, however :smile:
 
Last edited:

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