How many diagonals can there be put in a 12-gon?

1 Answer
Nam D.
May 30, 2018

54

Explanation:

The number of diagonals that are possible to draw in an n-sided polygon is (n(n-3))/2.

In a dodecahedron, n=12, so the number of diagonals possible is:

d=(12*(12-3))/2

=(12*9)/2

=108/2

=54

Related questions
Impact of this question
1798 views around the world
You can reuse this answer
Creative Commons License