To calculate the sum of the angle measures of a polygon with n sides we use the formula:
[tex](n-2)\cdot180[/tex]for a 205-gon
[tex]\begin{gathered} (205-2)\cdot180 \\ 203\cdot180 \\ 36540 \end{gathered}[/tex]The sum of the angles of a 205-gon is 36540°
