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A polygon with n sides has n*(n-3)/2 diagonals. Simple as that. So a 9 sided polygon has 9*6/2 = 27 diagonals.
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∙ 12y ago
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How many diagonals that a hexagon have?
A hexagon has 9 diagonals.
How many diagonal lines does a nonagon have?
A nine sided nonagon has 27 diagonals
What are all 9 sided figures called?
A nine sided plane figure is a nonagon. A nine sided three dimensional figure is a nonahedron.
What is a nine sided figure called in Spanish?
nine sided figure = nueve figura una cara nonagon = nonágono
What shape does a nonagon look like?
Nine-sided closed figure
How many diagonals does a nine sided figure have?
7
How many diagonals that a hexagon have?
A hexagon has 9 diagonals.
How many diagonals does a nine sided polygon?
For an n-sided polygon, the number of diagonals is 1+2+3+....+(n-4)+2(n-3). For a nine-sided polygon, there are 1+2+3+4+5+2(6)=27 diagonals.
How many diagonal lines does a nonagon have?
A nine sided nonagon has 27 diagonals
What regular polygon has 9 diagonals?
A regular octadecagon (an eighteen sided polygon) would have nine diagonals.
What are all 9 sided figures called?
A nine sided plane figure is a nonagon. A nine sided three dimensional figure is a nonahedron.
What is a nine sided figure called in Spanish?
nine sided figure = nueve figura una cara nonagon = nonágono
Nine sided figure?
nonagon
What is the sum of a nine sided figure?
nuevegon
What do you call a nine sided figure?
Nonagon
What is definition of nonagon?
A nine sided figure.
What do you call a 9 sided figure?
It is called a nonagon. There currently is no official name for a nine-sided polygon. However, two names have been proposed for such a figure: the first is a Nonagon; the second is an Enneagon.
