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Angle 1
Angle 2
Angle 3
Lines 1
Lines 2
100
This angle measures more than 0 degrees and less than 90 degrees.
What is an acute angle?
100
This angle measures exactly 90 degrees.
What is a right angle.
100
This angle measures more than 90 degrees and less than 180 degrees.
What is an obtuse angle?
100
A spot in space.
What is a point?
100
Two lines that are equal distance apart and NEVER touch
What are parallel lines?
200
This angle measures exactly 180 degrees.
What is a straight angle?
200
Two angles that are side by side and share a ray and vertex.
What are adjacent angles?
200
This angle looks like the edge of a ruler.
What is a straight angle?
200
A one dimensional figure that extends forever in both directions.
What is a line?
200
Lines that cross at a point
What are intersecting lines?
300
Two adjacent angles that make a right angle.
What are complementary angles?
300
Two adjacent angles that total 180 degrees.
What are supplementary angles?
300
Two adjacent angles that make a straight angle.
What are complementary angles?
300
Part of a line with two end points
What is a line segment?
300
Lines that cross and make 90 degree angles only
What are perpendicular lines?
400
Two angles that share just a vertex and are congruent.
What are vertical angles?
400
Angles that are INSIDE the parallel lines of a transversal.
What are interior angles?
400
Angles that are on the OUTSIDE of the parallel lines of a transversal.
What are exterior angles?
400
One dimensional figure with one end point and extends forever in one direction.
What is a ray?
400
Two types of lines that cross or intersect
What are intersecting lines and perpendicular lines?
500
Angles that are CONGRUENT and OPPOSITE INTERIOR angles on a transversal.
What are alternate interior angles?
500
Angles that are CONGRUENT and OPPOSITE EXTERIOR angles on a transversal.
What are alternate exterior angles?
500
CONGRUENT angles that are in the SAME LOCATION on a DIFFERENT intersection.
What are corresponding angles?
500
Flat surface that extends in all directions.
What is a plane?
500
Two parallel lines that are intersected by a third line
What is a transversal?