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Java Games: Flashcards, matching, concentration, and word search. |
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Basic Lines and Angles Vocabulary
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| A | B |
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| ray | Extends indefinitely in ONE direction, had exactly ONE endpoint.,  |
| angle ABC | Figure formed by TWO NONCOLLINEAR rays with a common endpoint.,  |
| vertical angles | 2 non-adjactent angles formed by intersecting lines.,  |
| perpendicular lines | 2 lines that intersect to for a right angle.,  |
| complementary angles | sum of 90,  |
| supplementary angles | sum of 180,  |
| acute angle | angle: less than 90,  |
| obtuse angle | angle: more than 90,  |
| right angle | angle = 90,  |
| vertex | The common endpoint of the 2 rays forming an angle.,  |
| congruent | having the same measure. |
| vertical angles | 2 angles directly across the vertex from each other., |
| ray AB |  |
| point | location in space,  |
| line | a collection of points along a straight path that go on forever in opposite directions. it has no endpoints,  |
| line segment | part of a line,  |
| parallel lines | lines that never intersect or cross,  |
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