Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key


Play button


Play button




Click to flip

26 Cards in this Set

  • Front
  • Back
A location in space having no dimensions
Postulate 4
If two planes intersect, then their intersection is a line
a set of points that extends infinitely in two opposite directions
the set of points that are in both figures. Two lines intersect in a point. A plane and a line intersect in a point
a flat surface that exists without end in all directions
Supplementary angles
Two angles whose measures add up to 180 degrees
Postulate 1
through any to points there is exactly one line.
Bisector of an angle
a ray that divides the angle into two congruent adjacent angles
Complementary angles
Two angles whose measures have a sum of 90 degrees
A line segment
a part of a line cosisting of two endpoints and all points that lie between them
Straight angle
Angles measues 180 degrees
Acute angle
Angle measures between 0-90 degrees
Coplanar points
points that lie in the same plane
Vertical angles
Two lines intersect the angles that are not adjacent to each other
adjacent angle
Two angles that have a common vetex and a common side, but no interior points in common
Obtuse angle
Angle measures etween 90-180 degrees
Congruent angles
have the same measure
Right angle
Angle measures exactly 9o degrees
Postulate 2
through any three noncollinear poinst, there is exactly one line
The size of an angle is measured with this unit
the set of all points
Coplanar points
points that lie on the same line
Postulate 3
If tow points lie in a plane, then the line jioning them lies in that plane
the figure formed by two rays that have a common endpiont. The endpoint is called a vertex of the angle. Each ray formed a side of the angle.
Congruent line segments
have the samemeasure. The midpoint of a segment is thhe point that dividesthe segment into two conqruent segments.
Perpendicular lines
two lines that intersect to form equal adjacent right angles