Across
- 4. A flat surface that keeps spreading in all directions forever.
- 5. Angle An angle found on the outside of a shape or object.
- 6. Any shape that is a polygon and has four sides.
- 8. lines Two lines that cross.
- 11. lines Two lines, that lie next to each other without ever getting close together.
- 13. The vertex is the point where two rays or line segments meet to form an angle.
- 14. A specific place, marked by a dot and usually named with a letter.
- 15. Triangle A triangle with two sides that have the same length.
- 17. Polygon A shape with congruent sides and identical angles.
- 18. angle An angle that is more than 90 degrees.
Down
- 1. angle An angle that measures less than 90 degrees.
- 2. Segment A part of a line that has two endpoints.
- 3. Angle An angle found on the inside of a shape or object.
- 4. lines Two lines that make right angles when they cross.
- 7. angle An angle that measures 90 degrees.
- 9. Triangle A triangle that has all three sides the same length.
- 10. Triangle A triangle with no equal length sides.
- 12. The units used to measure an angle.
- 16. angle An angle that measures 180 degrees.