Geometryvocab
- 2. Line segmentA part of a line. It has 2 endpoints.._____________.
- 3. lineA straight path that goes on forever in both directions.It has no beginning.It has no end.-------------------
- 4. rayPart of a lineIt has an endpoint (starting point)It goes on in one direction forever..-------------------
- 5. angle2 rays with a common endpointThere are 3 types of anglesRight angles: have a square cornerAcute angle: is smaller than a right angleObtuse angle: is larger than a right angle
- 6. Plane FiguresAre flat figures (shapes)They can be open Or closed
- 7. PolygonPoly=manyIs a closed plane figure that has 3 or more sides.The sides are line segmentsTriangle (3 sides)Square (4 sides)Pentagon (5 sides)
- 8. QuadrilateralA polygon with 4 sides and 4 angles
- 9. Parallelogram A quadrilateral with 2 sets of parallel sides
- 10. Rectangle A quadrilateral with 2 sets of parallel sides AND 4 right angles
- 11. Square4 equal sides4 right angles2 sets of parallel sides
- 13. Trapezoid A quadrilateral with 1 set of parallel sides
- 14. ParallelParallel are always the same distance apart.If you extended forever, they’d never touch each other
- 15. TriangleA polygon with 3 sides and 3 angles (corners)
- 16. Equilateral TriangleAll 3 sides are equal lengthAll three angles are the same size
- 17. Isosceles Triangle2 sides are equal in length2 angles are equal
- 18. Right TriangleOne angle is equal to 90 degrees90 degrees = a right angle
- 19. Congruent Shapes that are the same size and shape.They may be flipped or turned.
- 20. Not congruent May be a similar shape or size, but not the same.