You are here: Home > Maths intro > Circle theorems first page > Angles in same segment proof
'Angles in the same segment are equal'[A printable version of this page may be downloaded here.] Fig 1 Fig 2
The 2 angles D and E are both sitting on the same piece of the circle, BC. ('Subtending the same minor arc BC' is a more mathsy way of putting it!).
