Show that g( 5) = 1. That is, show that all pentagons can
Chapter 9, Problem 9.8.39(choose chapter or problem)
Show that g( 5) = 1. That is, show that all pentagons can be guarded using one point. [Hint: Show that there are either 0, 1, or 2 vertices with an interior angle greater than 1 80 degrees and that in each case, one guard suffices.]
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