Basic Definitions
Congruency
Anglish
Angle Pairs
Lines

100

This is represented by a straight path that extends in two opposite directions without end and has no thickness.
What is a line?

100

This is a point that divides the segment into two congruent segments.
What is a midpoint?

100

This angle measures less than 90 degrees.
What is an acute angle?

100

These are two coplanar angles with a common side, a common vertex, and no common interior points.
What is adjacent angles?

100

These are two lines that intersect to form right angles.
What are perpendicular lines?

200

This is represented by a flat surface that extends without end and has no thickness.
What is a plane?

200

This is a point, line, ray, or other segment that intersects a segment at its midpoint.
What is a segment bisector?

200

This angle measures to 90 degrees.
What is a right angle?

200

These are two angles whose sides are opposite rays.
What are vertical angles?

200

This is a line, segment, or ray that is perpendicular to the segmnet at its midpoint.
What is a perpendicular bisector?

300

This is part of aline that consists of two endpoints and all points between them.
What is a segment?

300

This is formed by two rays with the same endpoint.
What is an angle?

300

This angle measures more than 90 degrees but less than 180 degrees.
What is an obtuse angle?

300

These are two angles whose measures have a sum of 90 degrees.
What are complementary angles?

300

The ratio of the vertical change to the horizontal change between any two points.
What is the slope?

400

This is part of a line that consists of one endpiot and all the points of the line on one side of the endpoint.
What is a ray?

400

This is the endpoint of the angle.
What is the vertex?

400

This angle measures 180 degrees.
What is a straight angle?

400

These are two angles whose sum is 180 degrees.
What are supplementary angles?

400

This form of an equation of a nonvertical line is y=mx+b.
What is slope intercept form?

500

These are two rays that share the same endpoint and form a line.
What is opposite rays?

500

This is a ray that divides an angle into two congruent angles.
What is an angle bisector?

500

Angles with the same measure are...
What is congruent?

500

These are a pair of adjacent angles whose noncommon sides are opposite rays.
What are a linear pair?

500

The form of an equation of a nonvertical line is y-y1=m(x-x1).
What is the point slope form ?