Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
- Front
- Back
|
midsegment
|
the segment connecting the midpoint of 2 sides of a triangle
|
|
|
Triangle Midsegment Theorem
|
if a segment joins the midpoints of 2 sides of a trianlge, then the segment is parallel to the 3rd side and half its length
|
|
|
perpendicular bisector theorem
|
if a point lies on the perpendicular bisector of a segment, the it is equidistant from the endpoints of the segment
|
|
|
c. of perpendicular bis. theorem
|
if a point is equidistant from the endpoints of the segment, then its on the perpendicular bisector of a segment
|
|
|
distance from a point to a line
|
the length of the perpendicular segment from the point to the line
|
|
|
angle bisector theorem
|
if a point is on the bisector of an angle, then it is equidistant from the sides of the angle
|
|
|
c. of anvlge bis. theorem
|
if a point is equidistant from the sides of an angle, then it is on the angle bisector
|
|
|
concurrent
|
when 3 or more lines intersect in 1 point
|
|
|
point of concurrency
|
a point of intersection of a set of 3 ore more lines or segments
|
|
|
circumcenter
|
the point of concurrency of the perpendicular bisectors
|
|
|
theorem 5-6
|
the perpendicular bisectors of the sides of a triangle are concurrent at a point equidistant from the vertices
|
|
|
incenter
|
the point of concurrency of the angle bisectors of a triangle
|
|
|
theorem 5-7
|
the angle bisectors of a trianlge are concurrent at a point equidistant from the sides
|
|
|
median
|
a segment whose endpoints are at a vertex and the midpoint of the opposite side
|
|
|
centroid
|
the point of concurrency of 3 medians
|
|
|
theorem 5-8
|
the medians of a triangle are concurrent at a point that is 2/3 the distance from each vertex to the midpoint of the opposite side
|
|
|
altitude
|
the perpendicular segment from a vertex of an angle to the line containing the opposite side
|
|
|
theorem 5-9
|
the lines that contain the altitude of a triangle are congruent
|
