Name 2 points that are collinear to D.
Points E and F
IF DE = 40 and EF = 9, find DF. 
DF = 49
A line, ray, or segment that divides an angle into 2 congruent angles.
angle bisector
Classify the angle relationship of angles 1 and 2.

adjacent
supplementary
linear pair
Give another name for line p.
Line AE
Line EB
Line AB
If DF = 78, DE = 59, find EF.
EF = 19
Two lines that intersect at 90 degrees.
perpendicular
Angles 1 and 2 are complementary. If Angle 1 = 72, find Angle 2.
18 degrees
Name the intersection of line r and plane K.
Point X
If RS = 4x, ST = 5x, and RT = 81, find the measure of RS.
RS = 36
If the m<TUV = (9x+1), m<TUW = (7x-9), and the m<WUV = (5x-11), find the value of x.
x = 7
Find the value of x.
x = 14
Name a point that is non-coplanar to plane K.
Point W or Point Y
If LN = 6x-5, LM = x+7, and MN = 3x+20, find the length of MN.
MN = 68


x = 18
Angles A & B are complementary. Angle A =5x + 12 and Angle B = 2x + 15. Find the measure of each angle.
A = ?
B = ?
A =57
B = 33
Give another name for plane K.
Plane DEA, DEB, BEF, FEA, AFB, ADB, FAD, FAB, BDF, BAD, BEX, BFX, BAX, or any 3 non-collinear points.
If DF = 4x+10, EF = 2x-1, and DF = 9x-15, find the value of DF.
DF = 57

122 degrees
Angle 1 and 2 are supplementary angles. Angle 1 is 6x + 27, Angle 2 is 3x + 54. Find x.
x = 11