Across
- 2. triangle A triangle with one internal angle equal to 90 degrees.
- 5. A rectangle having all four sides of equal length.
- 7. line segments Two line segments which cross to form 90 degree angles.
- 9. A polygon with four sides.
- 12. A continuous extent of length.
- 15. triangle A triangle with all sides equal and all angles equal.
- 17. A triangle which has two sides equal.
- 18. triangle A triangle having three unequal sides and angles.
- 20. angle An angle less than 90 degrees but greater than 0 degrees.
- 21. The part of a straight line considered as originating at a point on the line and as extending in one direction from that point.
Down
- 1. An equilateral parallelogram having leaning angles.
- 3. A quadrilateral plane figure having two parallel and two nonparallel sides.
- 4. A position in space.
- 6. line segments Line segments that do not intersect.
- 7. A quadrilateral having both pairs of opposite sides parallel to each other.
- 8. line segments Line segments that cross each other.
- 10. A parallelogram having four right angles.
- 11. A straight line extending from the center of a circle or sphere to the circumference or surface.
- 13. A closed plane curve consisting of all points at a given distance from a point within it called the center.
- 14. The intersection point of two sides of a plane figure.
- 16. A polygon with 5 sides and 5 angles.
- 19. The line segment between two points on a given curve.