Angles
Perpendicular Lines
More About
Angles
Angles
Pretty Pictures
Miscellaneous Review
Parallel Lines
100
Two angles that share a side.
What are adjacent angles?
100
Perpendicular Lines form an angle this size.
What is an 90 degrees?
100
Two angles are this if and only if they share a side.
What is adjacent?
100
These two angles are corresponding.
What are 1 and 5? OR What are 3 and 7? OR What are 2 and 6? Or What are 4 and 8?
100
A shape that has 6 sides is called
What is a hexagon
100
Two parallel lines have this equal.
What is slope?
200
The meeting point of the sides of an angle.
What is the vertex?
200
The product of the slopes of perpendicular lines equals this.
What is -1?
200
If the measures of two angles are r and s, then the angles are this if and only if
r+s =90
What is complementary?
200
These angles are vertical.
What are 1 and 3? OR What are 2 and 4? OR What are 5 and 7? OR What are 6 and 8?
200
This has one endpoint and continues in one direction forever
What is a ray?
200
A line that intersects two or more lines.
What is a transversal?
300
This angle has a measure of 90 degrees.
What is a right angle?
300
If two lines l and m are each perpendicular to the same line n, then they are this to each other.
What is parallel?
300
If the measures of two angles are r and s, then the angles are this if and only if
r+s =180
What is supplementary?
300
If angle 1 is 37 degrees, then this is the measure of angle 5.
What is 37 degrees?
300
This is the instrument we use to measure angles.
What is a protractor?
300
When two coplanar parallel lines are cut by a transversal, these angles are equal.
What are corresponding angles?
400
A straight angle has this measure.
What is 180 degrees?
400
If a line is perpendicular to one of two parallel lines, as in the diagram, then this is the measure of angle 1.
What is 90 degrees?
400
Two angles are this if and only if they are adjacent and their sum is 180 degrees.
What is a linear pair?
400
These angles are linear pairs.
What are p and q? OR What are p and r? OR What are q and s? OR What are s and r?
OR What are w and x? OR What are w and y? OR What are y and z? OR What are x and z?
400
A triangle with no sides equal in length is called this.
What is scalene?
400
If corresponding angles of two lines are equal, then the lines are this.
What is parallel?
500
Angles that are smaller than 90 degrees are called this.
What is acute?
500
The line that passes through the midpoint of a line segment and is perpendicular to the segment is called this.
What is the perpendicular bisector?
500
If two angles are vertical angles, then their measures are this.
What is equal?
500
If angle AOD is 145 degrees, then angle DOB is this.
What is 35 degrees?
500
This is the instrument we use to draw circles.
What is a compass?
500
The slope of a line parallel to this line.
y = 2/5x + 7
What is 2/5?