6.2BisectorsofaTrianglePerpendicularBisectors

Whenthreeormorelinesintersectinthesamepoint,theyarecalledconcurrentlines.Thepointofintersectionofthelinesiscalledthepointonconcurrency.Inatriangle,thethreeperpendicularbisectorsareconcurrent.Thepointofconcurrencyisthecircumcenterofthetriangle.

Example2:FindingtheCircumcenterofaTriangleFindthecoordinatesofthecircumcenterof∆!"#withvertices! 0,3 ,! 0,−1 ,!"# !(6,−1)

UsingtheIncenterofatriangle Letsbisecteachangle.Thepointofconcurrencyistheincenterofthetriangle.

Example3:UsingtheIncertofatriangleInthefigureshown,!" = 5! − 1and!" = 2! + 11 a)FindNF b)CanNGbeequalto18?Homework3-15odd,29-32,35,36