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12.
There is actually a better answer and much larger answer than 12. The real answer is 54. Just because a dodecagon has 12 sides doesn't mean it has 12 diagonals because you can go either which way. To get a answer for this you can: 1. Multiply 12 and 9. You should get 108. 2. Then divid it by 2. You should get 54.
That is correct: The general rule for a polygon with n sides is that it has n*(n-3)/2 diagonals.
What else can I help you with?
How many diagonals does a undecagon have?
A undecagon has 44 diagonals. A dodecagon has 54 diagonals. An octagon has 20 diagonals. A heptagon has 14 diagonals.
How many diagonals can be drawn from one vertex of dodecagon?
12-3 = 9
How many sides does a dodecagon have?
A dodecagon is a polygon with exactly 12 sides.A dodecagon has 12 sides.12
How many degrees are in a dodecagon?
The interior angles of a dodecagon add up to 1800 degrees.
How many diagonals does a quadrilateral?
2 diagonals
How many diagonals has a regular dodecagon?
A regular 12 sided dodecagon has 54 diagonals.
How many diagonals does a dodecagon?
A dodecagon has 1/2*12*(12-3) = 54 diagonals.
How many diagonals are there in a dodecagon?
6
How many diagonals in a dodecagon have?
There are 54 diagonals in a 12 sided shape
How many diagonals in a dodecagon?
i think it is 54
How many diagonals in a regular dodecagon?
54
How many diagonals does a undecagon have?
A undecagon has 44 diagonals. A dodecagon has 54 diagonals. An octagon has 20 diagonals. A heptagon has 14 diagonals.
How many diagonals are in a dodecagon?
it's a 12 sided shape and it has 54 diagonals :D
How do you calculate the diagonals of a dodecagon?
It is: 0.5*(144-36) = 54 diagonals
How many diagonals can be drawn from one vertex of dodecagon?
12-3 = 9
How many diagonals in triangle to dodecagon?
The formula is: 0.5*(n2-3n) = number of diagonals when n is the number of sides of the polygon
How many diagonals to a dodecagon?
A polygon with n sides has 1/2*n*(n - 3) diagonals. So, for a polygon, with n = 12, there are 54 diagonals.
