Across
- 4. The point where 2 lines meet; the corner
- 7. A triangle with 3 congruent sides
- 8. A 3-dimensional box whose faces are rectangles
- 10. The number of cubic units needed to fill a space
- 11. An angle that measures less than 90 degrees
- 12. Any flat, closed, 4-sided shape
- 13. A triangle with no sides equal
Down
- 1. A triangle with 2 equal sides
- 2. An angle that measures exactly 90 degrees
- 3. A quadrilateral with 2 pairs of parallel sides
- 5. An angle whose measure is greater than 90 degrees
- 6. The part of a line between 2 endpoints
- 9. A triangle containing a right angle
- 14. A quadrilateral with exactly one pair of parallel sides