Show:
Vertical Angles
Transversals and parallels
Perpendicular and parallels
Triangle Angle Sum
Triangle Exterior Angle
100
Angles that are across from each other (live across the street) and they are congruent.
What are vertical angles
100
A line that crosses through two parallel lines at different points.
What is a transversal?
100
A line that intersects another line at 90 degrees.
What is perpendicular?
100
angle A + angle B + angle C = 180
What is the Triangle Angle Sum Theorem?
100
Exterior angle = The sum of the remote interior angles.
What is the Triangle Exterior Angle Theorem?
200
Vertical Angles: x + 5 = 3x - 5
What is x = 5
200
The ONLY postulate (when talking about parallel lines and transversals) that is supplementary.
What is Same Side Interior Angles?
200
line a is parallel to line b and line b is parallel to line c
What is .... line a is parallel to line c
200
Triangle angles: 50 50 x
What is angle x = 80
200
The angle outside of the triangle.
What is the exterior angle of a triangle?
300
Vertical angles have the same measurement.
What is congruent?
300
Two angles that are interior and on opposite sides of a transversal.
What are Alternate Interior Angles?
300
line m is perpendicular to line t and line t is perpendicular to line n
What is .... line m is parallel to line n
300
Triangle angles: 30 60 y
What is angle y = 90
300
The two angles inside the triangle and farthest away (not directly next to) the exterior angle.
What are remote interior angles?
400
Vertical Angles: 50 x + 5
What is x = 45
400
Two angles that are on the same side of the transversal and skip an angle (1 Exterior and 1 Interior).
What are Corresponding Angles?
400
line n is perpendicular to line l and line l is parallel to line m
What is ... line n is perpendicular to line m
400
Triangle angles: 60 60 z
What is angle z = 60
400
Remote Interior Angles 99 degrees 30 degrees
What is the exterior angle = 129 degrees?
500
Vertical Angles: 110 2x + 2
What is x = 54
500
Two exterior angles on opposite sides of the transversal (and are not adjacent angles).
What are Alternate Exterior Angles?
500
Perpendicular Transversal Theorem
What is ... If line n is perpendicular to line l and line l is parallel to line m then line n is perpendicular to line m
500
Triangle angles: 85 15 2x + 10
What is the value of x = 35
500
Remote Interior Angles 70 45
What is the exterior angle = 115