A regular 12 sided dodecagon has 54 diagonals.
There are 54 diagonals in a 12 sided shape
A regular or an irregular dodecagon both have 12 sides
27 diagonals
4 diagonals
A regular 12 sided dodecagon has 54 diagonals.
A dodecagon has 1/2*12*(12-3) = 54 diagonals.
6
There are 54 diagonals in a 12 sided shape
i think it is 54
A undecagon has 44 diagonals. A dodecagon has 54 diagonals. An octagon has 20 diagonals. A heptagon has 14 diagonals.
it's a 12 sided shape and it has 54 diagonals :D
A regular or an irregular dodecagon both have 12 sides
It is: 0.5*(144-36) = 54 diagonals
12-3 = 9
The formula is: 0.5*(n2-3n) = number of diagonals when n is the number of sides of the polygon
A polygon with n sides has 1/2*n*(n - 3) diagonals. So, for a polygon, with n = 12, there are 54 diagonals.