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Concurrent Line Notes.notebook
1
September 30, 2014
Sep 307:29 AM
POD
Factor:
x2 + 7x 18
Nov 46:38 PM
5.1 and 5.2 Bisectors, Medians, and AltitudesConcurrent: when 3 or more lines intersectPoint of Concurrency: the point at which 3 or more lines intersect
Circumcenter : pt of concurrency of the perpendicular bisectors equidistant to the verticesthe center of a circle that is circumscribed about the triangle
Circumscribed about: a circle that is on all 3 vertices of a triangle
Concurrent Line Notes.notebook
2
September 30, 2014
Nov 297:07 AM
right
obtuseacute Perpendicular Bisectors
Dec 17:52 AM
B
A
C
PE
D
F
Solve for x:
1)AP=17.5 BP=x
2) CP = 5x+4 AP= 2x+10
Concurrent Line Notes.notebook
3
September 30, 2014
Nov 297:07 AM
Incenter:pt of concurrency of the angle bisectors equidistant from the sides the center of a circle that is inscribed in the triangle
Inscribed in: circle that is inside the triangle
1) XI = 7 YI = x
2) ZI = 4x+2 YI = 2x+6
Solve for x:
Angle Bisectors
Nov 106:37 PM
Concurrent Line Notes.notebook
4
September 30, 2014
Nov 106:38 PM
Nov 47:07 PM
Median: segment whose endpoints are a vertex and the midpoint of the opposite sideCentroid: point of concurrency of a triangles medians
Concurrent Line Notes.notebook
5
September 30, 2014
Nov 47:11 PM
Altitude: a perpendicular segment from the vertex to the line containing the opposite sideOrthocenter: point of concurrency of the altitudes
Nov 47:33 PM
Concurrent Line Notes.notebook
6
September 30, 2014
Nov 309:03 AM
Perpendicular Bisector: Circumcenter, Equadistant to Vertices
Angle Bisectors: Incenter, Equadistant to the Sides
Medians: from the vertex to the midpoint of the opposite side
Centroid, 2/3 to vertex &1/3 to side
Altitudes: from the vertex & perpendicular to the opposite side Orthocenter
p. 339
Dec 19:57 AM
Concurrent Line Notes.notebook
7
September 30, 2014
Nov 106:47 PM
Nov 309:18 AM
Homework: p.330 #17-29oddp.340 #5-9odd, 16-19all
Concurrent Line Notes.notebook
8
September 30, 2014
Nov 106:34 PM
Nov 107:06 PM