Define that segment
Name that point of concurrency
Problems with Pythagoras
What's that measurement
Diagram - What's that segment
Unique features
100
I connect a vertex perpendicularly to the opposite side of a triangle
Altitude
100
Its the angle bisectors that find me
Incenter
100
These are needed in order to be able to use the Pythagorean Theorem
Right triangles and the measurements of 2 sides
100
CD =
5
100
Name a median
MD or DM
100
I am equidistant from the vertices of a triangle
Circumcenter
200
I form a right angle when I intersect at a midpoint of a side of a triangle
Perpendicular Bisector
200
2 Medians locate me, 3 define me
Centroid
200
What is the length of BD
13
200
P is the circumcenter of triangle ABC. Find the value of x.
x = 11
200
Name a Midsegment
GM or MG
200
I am equidistant from the sides of a triangle
Incenter
300
I connect a vertex to the midpoint of the opposite side of a triangle
Median
300
3 altitudes intersect at me
Orthocenter
300
How far away is P from side MN?
sqrt28 or 2sqrt7
300
PD =
24
300
Name a Perpendicular Bisector
ME or EM
300
I am 2/3 of the way from a vertex to the midpoint of the opposite side
Centroid
400
In a triangle I divide one of the vertices into 2 congruent angles
Angle Bisector
400
Its those perpendicular bisectors that pinpoint my location
Circumcenter
400
PQ =
34
400
LN =
16
400
Name an Angle Bisector
CF or FC
400
I am half the length and parallel to the 3rd side of a triangle
Midsegment
500
I connect the midpoints of 2 sides of a triangle
Midsegment
500
The segments that create special features but do not have a point of concurrency
Midsegments
500
What is AC =
7.5
500
The perimeter of triangle PQR =
100
500
Name an Altitude
DB or BD
500
Super hard!
These 3 points of concurrency are collinear
Centroid, Orthocenter and Circumcenter