Solution:
The sum of interior angles of a polygon is calculated using the formula below
[tex]=(n-2)\times180[/tex]Since the polygon is an octagon,
[tex]n=8[/tex]By substituting the values, we will have
[tex]\begin{gathered} (n-2)\times180 \\ (8-2)\times180 \\ =6\times180 \\ =1080^0 \end{gathered}[/tex]Hence,
The final answer is
[tex]\Rightarrow1080^0[/tex]OPTION C is the right answer
