A (not necessarily convex) 11-sided polygon can have at most how many right interior angles? Be sure to explain why an 11-sided polygon can have that number of right interior angles, and why it can’t have any more than that. Please help!
+1223 The sum of external angles of any polygon is 360 degrees. Having a right angle contribues 90 degrees to the external angles, so there can only be a maximum of 3 right angles. (if there were 4, there wouldn't be room for any more angles)
