Find the number of diagonals of a polygon of 10 sides.

Explanation

To find the number of diagonals in a polygon with 10 sides, we can use the formula for the number of diagonals in a polygon, which is given by:

\[ D = \frac{n(n - 3)}{2} \]

where \( n \) is the number of sides (or vertices) of the polygon.

...