1. Attributes A quality that is characteristic of someone or something.

2. Congruent – figures that have exactly the same size and same shape

3. Plane Figure – Any two-dimensional figure

4. Lines parallel lines Lines in a plane that never intersect Example: Linesplane perpendicular lines Two lines that intersect to form four right angles Example:linesintersectright angles

5. Ray A part of a line, with one endpoint, that continues without end in one direction Example: line ray CD

6. Angles angle A figure formed by two rays that have a common endpointrays Acute angle An angle that has a measure less than a right angle (less than 90°) Example: angleright angle obtuse angle An angle whose measure is greater than 90° and less than 180° Example: angle

7. Polygon – a closed plane figure with straight sides

8. Quadrilateral – a four sided polygon

9. Trapezoid – a quadrilateral with only one pair of parallel sides

10. Parallelogram – any four sided polygon with two pairs of parallel lines

11. Solid figure – A figure with 3 dimensions; not flat

12. Three Dimensional – having length, width, height, and volume

13. Horizontal– the direction from left to right Vertical – The direction from top to bottom

14. Edge – A place where two or more sides meet on a geometric solid Edge

15. Face – A flat side on a geometric solid Face

16. Vertex – a corner; a place where three or more sides meet in a geometric solid

17. Cube – A solid figure with six congruent square faces

18. Prism – A 3-dimensional figure that has two congruent and parallel faces that are polygons. The rest of the faces are parallelograms rectangular prism Hexagonal prism

19. Rectangular Prism – A solid figure in which all six faces are rectangles

20. Pyramid – a polyhedron whose base is a polygon whose other faces are triangles that share a common vertex

21. Square Pyramid square pyramid A pyramid with a square base and four triangular faces Example: pyramid squarebasetriangularfaces

22. Sphere – any round object whose curved surface is the same distance to the center as all of its points

23. Cylinder A solid figure with two circular bases that are parallel and congruent –

24. Cone – a solid figure with one curved surface, one circular base, and one vertex Vertex Circular Base

25. Base – A special face of a solid figure BaseThe base of a cone is a circle.

26. Side – any of the line segments that form a polygon Side

27. Square – A plane figure with four sides that are the same length and four right angles

28. Rectangle A parallelogram with four right angles

29. Triangle – A plane figure with three straight sides

30. Pentagon – a five-sided polygon

31. Hexagon– a six sided polygon 1 2 3 4 5 6

32. Octagon – An eight- sided polygon STOP