SOLUTION: whats the formula for the arc length of a circle?

Algebra ->  Circles -> SOLUTION: whats the formula for the arc length of a circle?      Log On


   

Question 28420: whats the formula for the arc length of a circle?
Answer by sdmmadam@yahoo.com(530) About Me  (Show Source):
You can put this solution on YOUR website!
whats the formula for the arc length of a circle?
If an arc of length s subtends an angle A radians at the centre of a cicle of radius r cms, then the arc length has the formula
s= r times the angle A
That is
s=rA (cms)