This question is taken directly from my book... I guess I'm supposed to use the definition of convex: A set S of points is called convex if the following condition holds: if A,B e S then AB is a subset of S.
This question is taken directly from my book... I guess I'm supposed to use the definition of convex: A set S of points is called convex if the following condition holds: if A,B e S then AB is a subset of S.
So S is the set of angles? What might those be, and how are we to costrue the composition of angles?