Question

The number of diagonals of an n-sided figure is = (n- 3n). Use the formula to find the number of
diagonals for a 6-sided figure.
I need it very urgently.
please help me!​

Answer 1

Answer:

n-3 diagonals

The number of diagonals in a polygon = n(n-3)/2, where n is the number of polygon sides. For a convex n-sided polygon, there are n vertices, and from each vertex you can draw n-3 diagonals, so the total number of diagonals that can be drawn is n(n-3).

Answer 2

Answer:

9

Step-by-step explanation:

Formula:1/2(n square-3n)

So,1/2(6 square-3×6)

=1/2(36-18)

=1/2×18

=9