Across
- 6. the intersection of a 3-D figure and a plane
- 8. a 3-D figure with all points the same distance from the center
- 13. a three-sided figure
- 14. four-sided figure with no right angles
- 18. quadrilateral with right angles and congruent sides
- 20. a polyhedron that has two congruent polygon bases and other faces that are parallelograms
- 21. a five-sided figure
- 22. line segment that passes through the center of a circle with endpoints on the circle
- 23. amount of space enclosed within a 3-D shape
- 24. ratio of the circumference of a circle to the length of the diameter
Down
- 1. a quadrilateral with one pair of parallel sides
- 2. figure with no straight sides
- 3. on an angle or polygon, the point where two sides intersect
- 4. a flat surface that has no thickness and extends forever
- 5. the perpendicular distance from the base to the opposite vertex
- 7. distance around a circle
- 8. the sum of the areas of all the faces of a 3-D figure
- 9. a six-sided figure
- 10. a 3-D figure with two parallel and congruent circle bases
- 11. an arrangement of 2-D figures that can be folded to form 3-D figure
- 12. a face of a 3-D figure by which it is classified
- 15. parallelogram with four right angles
- 16. line segment with one endpoint on the circle and the other at the center
- 17. a 3-D figure with one vertex and one circular base
- 19. quadrilateral with no right angles and congruent sides
- 21. a polyhedron with a polygon base and triangle sides that meet at a vertex