| A | B |
|---|
| Triangle | Three sided closed convex polygon |
| Point | a location in space with no dimension |
| Line | is made up of an infinite number of points that go on forever if you move in one direction |
| Plane | infinite number of lines or points that go on FOREVER. |
| Co-planer-points | points that are on the same plane |
| Square | it has two sets of parallel lines that are all equal to one another |
| Right angle | a 90 degree angle |
| Acute angle | has a measure less than 90degrees |
| Obtuse triangle | a triangle with an angle that is more than 90 degrees |
| Scalene triangle | - all sides of a triangle are different |
| Isosoles triangle | when two sides are equal |
| Median of a triangles | line segment from a vertex to the middle of the side opposite |
| Quadrilateral | four sided figure |
| Pentagon | polygon with 5 sides |
| Hexagon | polygon with 6 sides |
| Equiangular | all angles equal measure |
| equilateral | all sides equal measure |
| angle bisector | ray which cuts angle into two equal angles |
| altitude of a triangle | segment from one vertex to the opposide side making a right angle |
| incenter | the point of concurrency of the three angle bisectors of a triangle |
| circumcenter | the point of concurrency of the three perpendicular bisectors |
| orthocenter | the point of concurrency of the three altitudes of a triangle |
| centroid | concurrency of the three medians of a triangle |
| supplementary angles | two angles that add to 180 degrees |
| complementary angles | two angles that add to 90 degrees |
| vertical angles | angles formed by the intersection of two lines, and share the same vertex but not exteriior rays |
| linear pair | two adjacent angles which share a side(ray) and their exterior rays form a straight line |
| alternate interior angles | opp sides of trans and inside parallel lines |
| alternate exterior angles | opp sides of trans and outside parallel lines |
| corresponding angles | same side of transversal and same side of parallel lines |
| probability of an outcome | the ratio of the number of ways in which that particular outcome can occur to the total number of outcomes |
| vertex angle of an isosceles tri | the angle formed by te two congurent sides of an isos tri |
| base angles of an isosceles tri | two angles that each have as one side the base of an isos tri |
| base of an isosceles tri | the side opposite the vertex angle in an isos tri |
| exterior angle | an angle that forms alinear pair with one of the interior angles of the polygon |
| CPCTC | corrosponding parts of congruent triangles are congruent |
| rhombus | parallelogram with four congruent sides |
| parallelogram | quad with 2pr sides parallel |
| perpendicular bisector | cuts line/segment in half and is perp to it |
| midsegment of triangle | line segment connecting the midpoints of two sides of a triangle |
| midsegment of trap | line segment connecting the midpoints of the two nonparallel sides of the trap |
| isos trap | a trapezoid whose two nonparallel sides are congruent |
| transformation | each point on a "moved" image can be paired with exactly one point of the original image |
| rigid transformation | transformation that preserves size and shape |
| translation | moving through space, parallel to itself |
| rotation | rotating about a single point in space |
| reflection | symmetry about a given line |
