Definitions
Lines, Segments, Rays
Angles
Parallel
Do the Math
100
Point
What is a particular place in space?
100
Has a vertex
What is a ray?
100
<90°
What is acute?
100
Transversal
What is a line that intersects at least 2 other lines or segments?
100
The complement of 54°.
What is 36°?
200
Ray
What is a path beginning at 1 point and continuing through another point?
200
Has 2 endpoints
What is a line segment?
200
>90°
What is obtuse?
200
Lines that are not in the same plane but never meet.
What are skew lines?
200
The supplement of 45°.
What is 135°?
300
Angle
What are 2 rays that share a vertex?
300
Has no end.
What is a line?
300
Complementary
What are angles whose sum is 90°?
300
Lines in the same plane that never meet.
What are parallel lines?
300
An unknown value combined with negative 5.
What is x - 5?
400
Line
What is a path of points going through 2 points?
400
Intersect at 4 right angles.
What are perpendicular lines?
400
Supplementary
What are angles whose sum is 180°?
400
Angles inside the figure on opposite sides of a transversal.
What are alternate interior lines?
400
The sum of supplementary angles.
What is 180°?
500
Line Segment
What is a path of points BETWEEN 2 points?
500
Determined by 2 points in space.
What is a line?
500
90°
What is a right angle?
500
Lines outside the figure on opposite sides of a transversal.
What are alternate exterior lines?
500
(n - 2)·180
What is the sum of interior angles of a polygon (where "n" is the number of sides)?
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