No, each internal angle of any convex polygon is not at most 180 degrees. That would mean they could be 180 degrees. Every n-sided convex polygon has n internal angles, and each of them is less than 180 degrees. "At most" means "less than or equal to," and that is false here.
No, each internal angle of any convex polygon is not at most 180 degrees. That would mean they could be 180 degrees. Every n-sided convex polygon has n internal angles, and each of them is less than 180 degrees. "At most" means "less than or equal to," and that is false here.