Across
- 1. A plane figure with the same size and shape
- 5. Part of a line between two points
- 7. A ray that cuts the angle exactly in half, making two equal angles
- 8. The distance from the circle's center to a point on the circle, and is constant for a given circle
- 11. Point at which two line segments intersect (forming an angle)
- 12. A triangle with all three sides with different lengths
- 14. Line Segments that intersect (cross) at an angle of 90°
- 15. A triangle with two equal length sides (and two equal internal angles)
- 18. An angle that measures 90°
- 19. A quadrilateral that has two pairs of opposite sides that are parallel
Down
- 2. An angle that measures more than 90°
- 3. Two angles that add up to 90 degrees
- 4. A flat, two-dimensional object that continues infinitely in all directions and has no thickness at all
- 6. Line segments that never intersect (they are always the same distance apart)
- 9. Two angles that add up to 180 degrees
- 10. A quadrilateral with 4 equal sides and 4 right angles
- 13. A triangle with all three sides of equal length (each internal angles = 60°)
- 16. An angle that measures less than 90°
- 17. A line that passes through two other lines
- 20. A line segment connecting a vertex to the line containing the opposite side and perpendicular to that side
