hey you can help me out

[tex] \huge{ \rm{Question:}}[/tex]
The sum of seven interior angle measurements in an octagon equal 835⁰. What is the angle measurement of the 8th angle? (Hint: An octagon has 8 sides.)
A) 110°
B) 120°
C) 235°
D) 245°
[tex] \huge{ \rm{Answer:}}[/tex]
HOPE THIS HELPS^^