The length of the triangle

                                                        The length of the trian   

 Theory of how to calculate the length of the v belt length = (radius radius of 1 + 2) * 3, 14 + circle center distance under the center distance you want, please don't take 2 is not so calculate theory length = (radius radius of 1 + 2) * 3, 14 + (circle center distance * 2)... How to calculate the length of the v belt
Theoretical length = (radius radius of 1 + 2) * 3, 14 + circle center distance
Under the center distance you want, please don't take 2 is not so calculate
Theoretical length = (radius radius of 1 + 2) * 3, 14 + (circle center distance * 2)