DIAGONALS The line segments obtained by joining vertices which are are not adjacents are called the diagonals of the polygon.

Which of the following cannot be number of diagonals of a polygon

Write the number of diagonals of an n-sided polygon.

Find the number of diagonals of a 10-sided polygon.

Find the number of diagonals of a 16-sided polygon.

The line segments joining the midpoints of the adjacent sides of a quadrilateral form

A regular polygon has 20 sides. Find the number of diagonals of the polygon.

in the given square,a diagonal is drawn,and parallel line segments joining points onthe adjacent sides are drawn on both sides of the diagonal.The length of the diagonal n sqrt(2)cm. If the distance between consecutive line segments be (1)/(sqrt(2))cm, then thesum of the lengths of all possible line segments and the diagonal is:

The number of diagonals that can be drawn by joining the vertices of a heptagon

Find the number of diagonals of a polygon of 10 sides.