Hi Ive been trying to solve the following problem: There are two gear wheels whose centers are seperated by 25 cm. a chain is wrapped around the two wheels such that if one wheel is turned the other turns(much like a cycle chain.) If th radius of the wheels are 11cm & 4 cm respectively, find the lenth of the chain. I know the problem seems simple, and i have solved it. But I did it by estending the chains in the direction of the smaller wheel and ended up with a cone. Then I foundout the length of thechain,but I realise that the working was too long. Is there a simpler method to solve this . Is there a general method? Plz help.