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

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1/2*(142-42) = 77 diagonals

17

17

There are: 0.5*(682-(3*68)) = 2210 diagonals

7-3 = 4

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38 diagonals

It is 18 diagonals

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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.

In a polygon with n sides, the number of diagonals that can be drawn from one vertex is given by the formula (n-3). Therefore, in a 35-sided polygon, you can draw (35-3) = 32 diagonals from one vertex.

5

1/2*(142-42) = 77 diagonals

170 diagonals

17

17

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