Question

To draw the diagonals of following polygons.
1 Quadrilateral
2 pentagon
3 hexagon
4 heptagon
5 octagon and hence derive the general Formula for finding the number of diagonals in polygon.

help me maths expert
plz plz give me correct answer plz

Answer 1

Answer:

The number of diagonals in a polygon:- n(n-3)/2, where n refers to the no. of sides of the polygon.

Step-by-step explanation:

For eg:-

No. of sides in a Pentagon= 5

n=5

=n(n-3)/2

=5(5-3)/2

=(5×2)/2

=10/2

=5

Rest you could do yourself as practise.