| Term | Definition |
|---|
| acute | angle less than 90 degrees |
| obtuse | angle greater than 90 degrees |
| right | 90 degree angle |
| vertex | the point where the sides of an angle or 3 or more edges of a shape meet, such as the corner of a square |
| intersecting | lines that meet and cross at a point |
| perpendicular | lines that intersect to form 4 right angles |
| parallel | lying or moving in the same direction, but always the same distance apart (never touch) |
| line segment | a piece of a line with an endpoint at each end |
| line | geometric element that's the path of a moving point (continues in both directions without ending) |
| ray | part of line with one endpoint and extends forever in the other direction |
Combine with other sets
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