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math w/Annabeth
Math terms and their definitions: geometry
Term | Definition |
---|---|
Line | A length that goes in two opposite directions without end |
Ray | Has one endpoint and goes without end in one direction |
Line Segment | A part of line with two endpoints |
Plane | A flat surface that extends without end |
Parallel Lines | Lines that never meet |
Intersecting Lines | Lines that meet at a point |
Angle | Formed by two rays with the same endpoint |
Vertex | Point of intersection of the sides of an angle |
Protracter | Tool to measure and draw angles |
Degrees | Unit of measure for angles |
Right Angle | Measures exactly 90 degrees |
Acute Angle | Less than 90 degrees |
Obtuse Angle | More than 90 degrees |
Straight Angle | Measures exactly 180 degrees, a straight line |
Complementary Angles | Add up to 90 degrees |
Supplementary Angles | Add up to 180 degrees |
Vertical Angles | Angles opposite each other when two lines intersect |