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geometry vocabulary
word | definition |
---|---|
acute angle | an angle whose measure is less than 90 degrees |
angle | an angle is formed by two rays with the same end point |
angle bisector | a ray that divides an angle into rays with the same endpoint |
collinear points | points that lie on the same line. |
congruent angles | are angles that divides an angle into congruent angles |
congruents segments | are segments that have the same lenghts |
conjecure | a conclusion reached through inductive reasoning |
coordinate | a point an a capital letter |
coplanar | point and line in the same place. |
counter example | enough to prove a conjecture false |
inductive reasoning | reasoning based on observations |
line | has lenght but no width or thickness. it exteds without end in two directions. |
perpendicular lines | are line that intersect and from right angles |
plane | a flat surface that and form right angles |
point | has no lenght, width or thickness, but has a position |
postulate | astament accepted to be true without proof |
ray | the part of a line consisting of one end point on the line of one side of the end point |
right angle | 90 degrees |
segment | a part of two points called and points between them |
skew lines | lines that are parrallel and they go in opposite directions |
space | the boundless 3-demensional set of all points |