Across
- 1. A quadrilateral with four congruent sides and two pairs of opposite sides are parallel.
- 9. A quadrilateral in which all right angles and the opposite sides are equal and parallel.
- 10. A quadrilateral with four equal sides, four right angles and two pairs of opposite sides are parallel.
- 12. A quadrilateral with only one pair of parallel sides.
- 16. Two intersecting lines that form four right angle at their point of intersection.
- 18. A quadrilateral with two pairs of congruent adjacent or consecutive sides. It looks like a toy kite.
- 19. A triangle with three equal sides and three equal angles.
- 20. A part of a straight line that has two distinct endpoints.
Down
- 2. A triangle wth one angle measure greater than degrees.
- 3. A six sided polygon
- 4. Lines that cross or meet each other at a single point.
- 5. A straight line segment that passes through the center of the circle and whose endpoints lie on the circumference of the circle.
- 6. An angle measures greater than 0 but less than 90 degrees.
- 7. An eight sided polygon.
- 8. A line segment that joins two points on the circumference of the circle.
- 11. A triangle with all angles less than 90 degrees.
- 13. A triangle with two equal or congruent sides.
- 14. A part of a line with one endpoint that extends infinitely in one direction.
- 15. A triangle in which one angle is 90°
- 17. An alignment of sets of points on a straight path that extends infinitely, goes on forever, in opposite directions.
