This video shows you how to divide an arc into even number of equal parts. Using this method, an arc can be divided into equal parts such as 2, 4, 6, 8, 10, 12 parts etc. No angle measurement or calculation is needed. We need this method when we are developing a sectioned cone. Dividing an arc into 8 parts is easy but into 12 parts need some thinking. Again, you have make some strategy when you want to divide an arc into 10 equal parts.