Question

The number of diagonals in a 18 sided polygon

Answer 1

A polygon with 18 sides has 135 diagonals.

A polygon is a two-dimensional, closed form that is flat or planar and is limited by straight sides. It does not have curved . A polygon's edges are another name for its sides.

The word "polygon" is Greek in origin, just like other geometric notions they developed. It simply means many (poly) angles (gon). A polygon's shape cannot include any bends, chasms, or apertures.

With a polygon with n sides, the number of diagonals can be calculated using the following formula:

n(n-3)/2

So, for an 18-sided polygon, the number of diagonals can be calculated as:

18(18-3)/2 = 135

Therefore, a polygon with 18 sides has 135 diagonals.

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