👉 In geometry, a sextarius is a polygon with six sides. It has 24 diagonals. This means that the number of diagonals in any convex polygon with n sides can be calculated by using the formula: \[ \text{Number of diagonals} = \frac{n(n - 3)}{2} \] In this case, the formula for calculating the number of diagonals for a sextarius is: \[ \text{Number of diagonals} = \frac{