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In this video I will use deductive reasoning to determine which of the 6 given points must lie on the same line given that points A, B, C, D, E, F are coplanar. Points A, D, F are colinear; B, C, E are colinear; and lines D and F, and C and E are perpendicular.(Example 4)

Next video in this series can be seen at:
https://youtu.be/vPyMXwozquc