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 Flashcards Matching Hangman Crossword Type In Quiz Test StudyStack Study Table Bug Match Hungry Bug Unscramble Chopped Targets

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# Unit 2 Vocab 4th blk

### vocabulary words

QuestionAnswer
acute angle less than 90 degrees.
angle two rays that are connected at the end point. The end point is called the vertex.
angle bisector ray that divides an angle into 2 congruent (=) angles.
collinear points points that lie on the same line are collinear points.
congruent angles angles that have the same measures.
congruent segments two segments with the same length.
conjecture a conclusion reached by using inductive reasoning.
coordinate the distance and direction from the origin of a number line.
coplanar points and lines in the same plane are coplanar.
counterexample a particular example or instance of the statement that makes the statement false.
inductive reasoning a type of reasoning that reaches conclusions based on a pattern of specific examples or past events.
line a line has length but no width or thickness. It extends without end in two directions.
midpoint a point that divides a segment into two congruent segments. it bisects the segment.
obtuse angle more than 90 degrees.
opposite rays opposite rays start at the same point and goes on in the same direction.
parallel lines parallel lines are coplanar lines that do not intersect.
perpendicular lines perpendicular lines that intersect to form right angles.
plane a plane is a flat surface that has no thickness. it extends without end in all directions.
point a point has no length, width, or thickness, but has a position. (location)
postulate a statement accepted to be true without proof.
ray a ray is a part of a line that consists of an initial point and all points on the line that lie on one side of the initial point.
right angle exactly 90 degrees.
segment a line segment is a portion of a line between two points called end points.
skew lines skew lines are noncoplanar lines. therefore, they are not parallel and do not intersect.
space space is the boundless three dimensional set of all points.
Created by: hawk_april