Across
- 3. angles two angles whose measure add up to 180 degrees
- 4. the number of cubic units needed to fill a given space
- 5. a parallelogram with four right angles
- 6. a straight path that extends without end in opposite directions
- 8. a transformation that enlarges or reduces a figure
- 10. angles two angles whose measure add up to 90 degrees
- 14. a line that intersects two or more lines
- 15. a figure formed by two rays with a common endpoint called the vertex
- 17. a transformation in which a figure is turned around a point
- 19. a region enclosed by two radii and the arc joining their endpoints
Down
- 1. a flat surface that extends forever
- 2. a four-sided polygon
- 4. on an angle or polygon, the point where two sides intersect
- 7. the line segment along which two faces of a polyhedron intersect
- 9. having the same size or shape
- 11. an exact location in space
- 12. a part of a line that starts at one endpoint and extends forever
- 13. segment a part of a line between two endpoints
- 16. a closed plane figure formed by three or more line segments that intersect only at their endpoints (vertices)
- 18. angles angles in the same plane that have a common vertex and a common side