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math exam-vocab
| Term | Definition |
|---|---|
| geometry | measurement of earth |
| euclid | known as father of geometry |
| collinear | points that lie on the same line |
| polygon | a closed plane figure formed by 3 or more line segments |
| congruent | same size and same shape |
| angle | a figure formed by 2 rays or sides with a common endpoint |
| vertex | the common endpoint in an angle |
| acute angle | an angle that measures greater than 0 degrees and less than 90 degrees |
| right angle | an angle that measures exactly 90 degrees |
| straight angle | an angle that measures exactly 180 degrees and is found in two opposites rays |
| obtuse angle | an angle that measures greater than 90 degrees and less than 180 degrees |
| angle bisector | a ray that divides an angle into two congruent angles |
| complementary angles | two angles whose measures have a sum of 90 degrees |
| supplementary angles | two angles whose measures have a sum of 180 degrees |
| perpendicular lines | lines which intersect at 90 degree angles |
| parallel lines | two lines that do not intercept and are coplanar |
| alternate interior angles | two angles that lie between two lines and on opposite sides of the transversal |
| alternate exterior angles | two angles that lie outside the two lines and on opposite sides if the transversal |
| parallelogram | has opposite sides that are parallel and equal in length |
| quadrilateral | a polygon with four sides |
| rhombus | has two pairs of parallel sides and all sides are congruent |
| trapezoid | has only one pair of parallel sides |
| hypothesis | the 'if' part if a conditional statement |
| conclusion | the 'then' part of a conditional statement |
| theorem | a true statement that follows as a result of other true statements |