Chapter 5 Flashcards
Perpendicular bisector converse
If a point is equidistant from the end points of a segment than it lies on the perp bisector of the segment
Perpendicular bisector Thm
If a point is on the perpendicular bisector of a segment then it is equidistant from the endpoints of its segments
Angle bisector Thm
If a point is on a bisector of an angle then it is equidistant from the two sides of the triangle
Angle bisector converse
If the point is on the interior of the angle and equidistant from the sides of the angle then it lies on the bisector of the angle
Distant between a point and a line
Is the length if the perp seg from the point of the line
Perpendicular bisector
A segment that is part of a perp bis of one of the sides
Angle bisector of a triangle
A segment that bisects one of the angles of the triangle
Median
A segment who’s endpoints are a vertex and the midpoint of the opposite side
Altitude
A segment from a vertex that is perpendicular to the opposite side or to the line containing the opposit side
*an altitude may lie outside or inside of a triangle
Concurrent
A set of lines that a single point of intersection
Circumcenter
A common point of the triangle o the perp bisector
*the circumvented is equidistant from the three vertices of a triangle
Incenter
Angle bisectors common point in a triangle
*the in center is equidistant from the three sides of the triangle
Centroid
The medians common point of a triangle
*the centriod is 2/3 the distance from the vertex to the midpoint of he opposite side
Orthocenter
Altitudes common point of a triangle
*no thms
The lines containing the perp bisector of a triangle are
Concurrent