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It has: 0.5*(100^2-(3*100)) = 4850 diagonals

Q: How many diagnols does a 100 sided polygon have?

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The name of a 100 sided polygon is Hectogon.

98

A regular 100-sided polygon has 4,850 diagonals. You can either check this for yourself, or use the formula provided in Related Questions below.

100*(100-3)/2 = 4850

A 100-sided polygon

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100 sided polygon has = n(n-3)/2 diagonals = 100(100-3)/2 = 4850 diagonals

The name of a 100 sided polygon is Hectogon.

The name of a 100 sided polygon is Hectogon.

A 100-sided polygon is called a Hectagon.A 1000-sided polygon is called a Chiliagon.

98

A 100 sided polygon is called a hectogon.

There are: 100-2 = 98 triangles

A polygon

A regular 100-sided polygon has 4,850 diagonals. You can either check this for yourself, or use the formula provided in Related Questions below.

100*(100-3)/2 = 4850

7000 triangles

It is a 100 sided polygon. :)