A convex $n$-gon has exactly three obtuse interior angles. Find all possible values of $n$.
Problem
Source: 2001 Estonia National Olympiad Final Round grade 10 p1
Tags: geometry, angles, convex, polygon
Source: 2001 Estonia National Olympiad Final Round grade 10 p1
Tags: geometry, angles, convex, polygon
A convex $n$-gon has exactly three obtuse interior angles. Find all possible values of $n$.