Example Problem and discussion of Dimension Three Distance Point to Cube Field, then in this explanation we are directed to discuss counting the length of the rib On the cube ABCD. EFGH, calculate the center line contained in the cube and the other. In another article has explained the material on a similar explanation. If you have studied the material well then you will be easier to understand the material to be delivered in this discussion. Immediately let us learn together about the material sample and discussion.