Across
- 4. a segment from the vertex to the midpoint
- 5. when an object is moved from one location to another and the size and shape of the object have not changed
- 9. the angle across from a side
- 10. two sides the same length
- 11. a quadrilateral with two pairs of parallel lines
- 13. a four-sided closed figure
- 15. a triangle with one right angle
- 16. the side across from an angle
- 17. the relationship involving two sides and the angle they form
- 20. the sum of measures of the interior angles of a triangle that is 180 degrees
- 21. no sides the same length
- 22. a triangle with three acute angles
Down
- 1. the angles that form linear pairs with the interior angles
- 2. a triangle with three equal angles
- 3. an angle within a shape that contains the base of the shape as one of its sides
- 6. a triangle with one obtuse angle
- 7. the angles inside a polygon
- 8. an operation that moves or changes a geometric figure in some way to produce a new figure called an image
- 12. all sides the same length
- 14. the side connecting two vertices of a triangle
- 18. three-sided closed polygon
- 19. a line measured by how steep it is
