Across
- 4. are lines that intersect at a right (90 degrees) angle
- 5. shape with three sides
- 8. a long, straight, thin mark with no bends
- 11. in the shape of an egg
- 14. The line where two faces meet
- 15. a part of a line that has a fixed starting point but no endpoint
Down
- 1. lines that cross one another
- 2. a flat shape with four sides, none of which are parallel
- 3. two straight lines that never cross
- 6. a space between two lines or surfaces that meet at one point, measured in degrees
- 7. the name of the shape comes from the amount of this it has
- 9. a shape with four equal sides and four 90° angles
- 10. a flat shape with three or more straight sides
- 12. a shape with circular ends and long, straight sides
- 13. the point where two lines meet to form an angle