CK12 - Geometry

b. a rectangle

c. a parallelogram

d. Fromyour workin a-c, whatconditionmusthold in orderto circumscribea quadrilateral?

6. Considerequilateraltriangle. Constructthe perpendicularbisectorsof the sidesof the triangle

and the circumcenter. Connectthe circumcenterto eachvertex.Your originaltriangleis now divided
into six triangles.Whatcan you concludeaboutthe six triangles?