Unit 5 Flashcards
(17 cards)
Equidistant
When 2 distances are the same
Distance from a point to a line
Length of the perpendicular segment
Perpendicular bisector of a triangle
a line that is perpendicular to one side of a triangle at the midpoint
Angle bisector of a triangle
A ray that bisects an angle of the triangle
Concurrent lines
3 or more lines that meet at a single point
Point of concurrency
Where concurrent lines meet
Circumcenter def
The perpendicular bisectors of a triangle meet at a pint called the circumcenter
Incenter def
Angle bisectors meet at the incenter
Circumcenter
- Intersection of perp. bisectors
- Equidistant to the vertices
- circle around the outside
- can be in, on, or outside a triangle
Incenter
- Intersection of angle bisectors
- Circle on inside
- Always inside
Median
*VERTEX to MIDPOINT of opposite side
Centroid def
Where medians meet
Altitude
*VERTEX to PERPENDICULAR
Orthocenter def
Where altitudes meet
Centroid
- Intersection of medians
- Vertex to centroid is 2/3 distance of whole median
- Center of gravity
- Always inside
Orthocenter
- Intersection of altitudes
* Can be inside, outside, or on
Midsegment
Segment that connects the midpoints of 2 sides of a triangle
