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# How many diagonals can be drawn in a 12 sided polygon?

Updated: 4/28/2022

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Q: How many diagonals can be drawn in a 12 sided polygon?
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### How many diagonals can be drawn in a 5-sided polygon?

A 5-sided polygon is called a pentagon. You can draw up to 5 diagonals in a pentagon.

### How many diagonals can be drawn from any vertex of a 20-sided polygon?

It is 18 diagonals

### How many diagonals can you drawn from one vertex in a 35 sided polygon?

A diagonal of a polygon is a segment drawn from one vertex to another non-adjacent vertex in a polygon. This leaves 32 diagonals that can be drawn from one vertex in a 35 sided polygon.

5

170 diagonals

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17

### If in a 54 sided polygon all possible diagonals are drawn from one vertex they divide the interior of the polygon into how many regions?

In a 54-sided polygon, 53 possible diagonals can be drawn from one vertex to another. These diagonals will not intersect. Therefore, the interior will be divided into 54 regions by the 53 diagonals plus the two sides of the original polygon that adjoin the vertex from which the diagonals are drawn.

### How many diagonals can be drawn in a tetracontakaidigon?

It is a 42 sided polygon and has: 0.5*(422-(3*42)) = 819 diagonals

### How many diagonals in a 15 sided polygon?

There are 90 diagonals in a 15-sided polygon.

### How many diagonals does an 11-sided polygon have?

An 11 sided polygon has 44 diagonals.