Question

find the number of diagonals of a regular nanogon

Answer 1

Answer:

Each vertex can be joined to eight others. But two of these vertices are adjacent so the joins are edges. Therefore if you go to each of the nine vertices in turn and draw the diagonals, you will draw six times nine diagonals. However half of these will have already been drawn, So there are 27 diagonals.

Step-by-step explanation:

Answer 2

Answer:

The formula of determining numbers of diagonals of an n sided polygon is n ( n-3 ) this a nanagon has 9diagonals

Step-by-step explanation:

This is for class 9