4
infiniteImproved Answer:-The formula is: 0.5*(n2-3n) where n is the number of sides of the polygonSo: 0.5*(144-36) = 54 diagonals
The name of a 12 sided polygon is Dodecagon.
it's a 12 sided shape and it has 54 diagonals :D
An 11 sided polygon is a hendecagon and a 12 sided polygon is a dodecagon
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number of diagonals in an n-sided polygon is n(n-1)/2 - n If the polygon has 12 sides, number of diagonals is 12(12-1)/2 -12 = (12)(11)/2 -12 = 132/2 - 12 = 66-12 = 54
10 ... any polygon it is 2 less than the number of sides or vertices wince they are the same.
There are 54 diagonals in a 12 sided shape
infiniteImproved Answer:-The formula is: 0.5*(n2-3n) where n is the number of sides of the polygonSo: 0.5*(144-36) = 54 diagonals
54
The name of a 12 sided polygon is Dodecagon.
it's a 12 sided shape and it has 54 diagonals :D
A regular 12 sided dodecagon has 54 diagonals.
A polygon with n sides has 1/2*n*(n - 3) diagonals. So, for a polygon, with n = 12, there are 54 diagonals.
1800 degrees (that is the sum of the internal angles of the 12-sided polygon).
An 11 sided polygon is a hendecagon and a 12 sided polygon is a dodecagon