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Geometry vocab 5
Question | Answer |
---|---|
line | straight, continues in both directions, does not end |
point | exact position or location |
ray | straight, part of a line, one endpoint and continues in one direction exact position or location straight, part of a line, has two endpoints straight, part of a line, one endpoint and continues in one direction |
line segment | straight, part of a line, has two endpoints |
angle | formed by two rays or line segments that share an endpoint |
vertex | endpoint of an angle where the two line segments or rays meet |
protractor | tool used to measure angles |
degree | amount measuring an angle |
right angle | measures 90˚, a square corner |
acute angle | measures less than a right angle, a “cute” angle |
obtuse angle | measures more than a right angle, a “big” angle |
straight angle | a line measuring 180˚ |
complementary angles | 2 angles in which their sum is 90° |
supplementary angles | 2 angles in which their sum is 180° |
intersecting lines | lines that cross at one endpoint forming angles |
perpendicular lines | intersecting lines that cross to form right angles |
parallel lines | lines that never cross, do not form angles, always the same distance apart |