The number of diagonals that can be drawn from one vertex in a 9-sided polygon is ____.
The number of diagonals drawn from one vertex of a polygon of n sides is
If the number of diagonals that can be drawn in a polygon is 9, then what is the number of sides that the polygon has?
The number of diagonals that can be drawn in a (n-3) sided polygon is 1/3 times the number of diagonals that can be drawn in an `n' sided polygon. The value of `n' is -