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Name a set of five coplanar points.
Points H, B, C, D, and F are all on plane , so they are coplanar.
Which of the marked points are not on plane ?
Points A, E, and G aren't on plane .
What is the intersection of planes and ?
The planes intersect along line BD.
What word best describes the relationship between lines BD and EG?
Since the two lines do not lie in a single plane, they are skew lines. Another way of seeing that they are skew is that they are neither parallel nor intersecting.