Veterinarians do not recommend feeding yogurt to dogs. Yogurt typically will not harm your dog, as the majority of adult dogs are lactose intolerant and yogurt has very low levels of lactose. However, yogurts (especially the âdietâ kind) may contain an artificial sweetener called xylitol, which is toxic to dogs.
So the general rule is: Sum of Interior Angles = (n -2) Ã 180 Â°. Each Angle (of a Regular Polygon) = (n -2) Ã 180 Â° / n. Perhaps an example will help:
Each interior angles of a regular nonagon measures 140^o Sum of all interior angles of any convex N-sided polygon equals to (N-2)180^o The proof of this is simple. Pick an initial point O inside a polygon, connect it with all vertices, forming N triangles. Sum of all angles of these triangles is N*180^o. To get a sum of all interior angles we should subtract a sum of all angles lying around that initial point O, that is we have to subtract 360^o.