SOLUTION: Hello, I am a junior in high school looking for help to get a formula. I need this formula to solve an equation in which I want to know the number of sides in a regular polygon, wh

Algebra ->  Formulas -> SOLUTION: Hello, I am a junior in high school looking for help to get a formula. I need this formula to solve an equation in which I want to know the number of sides in a regular polygon, wh      Log On


   



Question 989072: Hello, I am a junior in high school looking for help to get a formula. I need this formula to solve an equation in which I want to know the number of sides in a regular polygon, where I am given the circumradius and a side length.
Thanks in advance,
Tyler

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Hello, I am a junior in high school looking for help to get a formula. I need this formula to solve an equation in which I want to know the number of sides in a regular polygon, where I am given the circumradius and a side length.
==========================
s = side length
r = radius
n = # of sides
-----
angle = asin(s/2r)
n = 360/(2*angle)
--> n+=+360%2F%282%2Aasin%28s%2F2r%29%29
n+=+180%2Fasin%28s%2F2r%29