Angle Words
Vocabulary
Algebra Problem Solving
Undefined Terms
More to know!
100
Two angles that add to 90 degrees
Complimentary Angles
100
If two lines are equal distance apart they are known as this.
Parallel
100
4v = 44
What does v = ?
11
100
What are the three terms in Geometry that we learned can be described but not defined
Point, Line, Plane
100
Name both Lines in the image above
Line MR
Line LY
200
When two lines meet at a vertex creating an exactly 90 degree angle, it is called a
Right angle
200
The point that divides the line into two equal parts
Midpoint
200
Solve for the missing variable:
19x + 10 = 67
x = 3
200
Is assumed to be straight
Is considered one-dimensional.
Line
200
Name of a line that perfectly splits a line segment while creating 90 degree angles at the point of intersection
Perpendicular bisector
300
Straight Angles measure this many degrees
180
300
A triangle that contains at least 2 equal-length sides and 2 equal interior angle measures.
Isosceles Triangle
300
7y - 3 + 2y +3 = -90
y = -10
300
These two undefined terms can be placed on the third term
Point / Line (can be displayed on a Plane)
300
Line segments YB + ? = YW
Line segment BW
400
Angles that share a side and a vertex
Adjacent Angle
400
A reasonable guess that you are trying to either prove or disprove.
Conjecture
400
-x + 13.25 = -4x + 2
x = -3.75
400
Has infinite length and width with no height
Plane
400
What is the angle bisector of angle HMX below?
Ray MB
500
A line, ray, or line segment that divides an angle into 2 equal angles
Angle bisector
500
A true statement, which does not require to be proved.
Postulate
500
x/34 + 12 = 12.5
x = 17
500
Lines that do not intersect and are not parallel
Skew Lines
500
This is what we call opposite angles formed when two lines intersect.
Vertical Angles