Across
- 2. a flat, two-dimensional surface that extends infinitely far
- 5. a plane figure with seven straight sides and angles
- 8. a point or value that marks the end of a ray or one of the ends of a line segment or interval
- 11. a plane figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square
- 12. the outer boundary, especially of a circular area; perimeter:
- 13. a plane figure with nine straight sides and nine angles
- 14. a rectangular array of numbers or other mathematical objects for which operations such as addition and multiplication are defined
- 17. polygon grows or shrinks but keeps the same overall shape
- 18. a point or line common to lines or surfaces that intersect
- 19. a plane figure with four equal straight sides and four right angles
Down
- 1. a part of a figure cut off by a line or plane intersecting it, in particular
- 3. a straight one-dimensional figure having no thickness and extending infinitely in both directions
- 4. a four-sided plane rectilinear figure with opposite sides parallel
- 6. a plane figure with twelve sides
- 7. A set of lines or curves are said to be concurrent if they all intersect
- 9. a plane figure with six straight sides and angles
- 10. The point halfway between the endpoints of a line segment
- 11. the action of rotating around an axis or center
- 15. a flat shape with straight sides It has 2 pairs of equal adjacent sides
- 16. opposite or contrary in position, direction, order, or effect