Vocabulary
Bisector Theorems
Medians, Altitudes, Centroids
Ordering Sides and Angles
Triangle?
100
Two lines that intersect at a 90 degree angle
perpendicular lines
100
If AD = AC, and BA =12, what is BC?
12
100
Median
100
Order the SIDES from SHORTEST to LONGEST
AC, AB, BC
100
Can a triangle have side lengths 6, 9, and 21? How do you know?
No, 6+9<21
200
The exact same length between two points
Equidistant
200
If m∠DCA=48°, AD=11 and AB=11, what is m∠BCA?
48°
200
Altitude
200
Order the ANGLES from LARGEST to SMALLEST
L, K, J
200
Can a triangle have sides with lengths 5, 7, and 3? How do you know?
Yes, 3+5>7
300
A line or ray that divides something into two equal parts
Bisector
300
Solve for x
x=3
300
Is segment GE an altitude, median, or neither?
Neither
300
Order the ANGLES from SMALLEST to LARGEST
E, C, J
300
Can a triangle have sides with lengths 8, 14, and 6? How do you know?
No, 8+6=14
400
A line that connects a vertex of a triangle to the midpoint of the opposite side
Median
400
Find x, then find the length of FG.
x=25
FG=130
400
If point C is the centroid, and segment CG=9, what is segment BC?
18
400
Order the SIDES from LONGEST to SHORTEST
AC, BC, AB
400
Two sides of a triangle are 11 and 5. What is the range of possible measures for the third side?
6<x<16
500
a perpendicular line segment that extends from a vertex of a triangle to the opposite side
Altitude
500
Solve for m∠MNP
m∠MNP=88
500
If point C is the centroid, and segment DF=30, what is segment FC?
10
500
Order the SIDES from SHORTEST to LONGEST
IL, WI, WL
500
Two sides of a triangle are 23 and 14. What is the range of possible measures for the third side?
9<x<37