Hey there!
The equation for finding the sum of the interior angles for a polygon with n sides is the following:
[tex]180(n-2)[/tex]
"Hepta-" means seven; thus, a heptagon has 7 sides.
Since a heptagon has 7 sides, n=7.
Now, let's plug in that value into the equation.
[tex]180(7-2)[/tex]
[tex]=180(5)[/tex]
[tex]=900[/tex]
Thus, the sum of all interior angles in a heptagon is 900 degrees.
Have an awesome day! :)
~AgentCozmo4, Junior Moderator
