Geometry Crossword

3. A polygon with 3 sides and 3 angles
9. Lines that intersect (cross) at an angle of 90°
10. A triangle with two equal length sides (and two equal internal angles)
11. Part of a line that has one end point and goes in one direction without end
12. A plane figure with the same size and shape
17. If ~p, then ~q
18. An angle that measures more than 90°
19. Lines that never intersect (they are always the same distance apart)
20. If q, then p
21. Point at which two line segments intersect (forming an angle)

1. A location in space, a dot on a piece of paper
2. If ~q, then ~p
4. If p, then q
5. The distance around the figure
6. A triangle with all three sides with different lengths
7. Part of a line between two points
8. A flat surface
13. Two rays with the same end point
14. Connects two points via the shortest path and continues indefinitely (forever) in both directions
15. An angle that measures 90°
16. An angle that measures less than 90°