Changes

= Teaching Outlines =

= Teaching Outlines =

==Concept # 1. Cyclic quadrilateral==

==Concept # 1. Cyclic quadrilateral and its properties==

===Learning objectives===

===Learning objectives===

# A quadrilateral ABCD is called cyclic if all of its four vertices lie on a circle.

# A quadrilateral ABCD is called cyclic if all of its four vertices lie on a circle.