If a partial order is drawn as a Hasse diagram in which no two edges cross, its covering graph is called ______

If a partial order is drawn as a Hasse diagram in which no two edges cross, its covering graph is called ______ Correct Answer upward planar

In a Hasse diagram if no two edges cross each other in the drawing of partial order Hasse diagram, then its covering graph called the upward planar.
Bissoy MCQ

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