Answer: [tex]235^{\circ}[/tex]
Step-by-step explanation:
Given
The Sum of the seven interior angles of an octagon is [tex]845^{\circ}[/tex]
for a Polygon, the sum of the interior angles is given by [tex](n-2)180^{\circ}[/tex]
for octagon, n=8
The Sum of interior angles is [tex](8-2)360^{\circ}=1080^{\circ}[/tex]
Suppose the eighth angle be [tex]x[/tex]
[tex]\therefore x+845=1080\\\Rightarrow x=235^{\circ}[/tex]
The [tex]8^{th}[/tex] angle is [tex]235^{\circ}[/tex]
