Across
- 1. The common endpoint of an angle
- 4. A parallelogram with four right angles
- 7. A transformation of points over a line
- 9. The result of the preimage
- 10. A point that divides a segment into two congruent segments
- 12. triangle A triangle with all sides equal and all angles equal
- 13. A line meeting another at a 90 degree angle
- 17. angles Two angles that, together, add up 180 degrees
- 18. A mapping that results in a change in the position, shape, or sizes of the figure
- 19. Side opposite of the vertex angle
- 20. A line in the plane of a circle that intersects the circle in exactly one point
- 21. Something that cuts an object into two equal parts
Down
- 2. Has a central point that stays the same and everything else moves around that point in a circular motion
- 3. segment Part of a line with two endpoints
- 5. angles Angles that have the same measure
- 6. reflection The composition of a translation and a reflection across a line parallel to the direction of translation
- 8. A transformation that maps all points of a figure the same distance in the same direction
- 11. A quadrilateral with both pairs of opposite angles parallel
- 14. A plane figure with at least three strait sides and angles, and typically five or more
- 15. A transformation whose preimage and image are similar
- 16. The original figure
- 18. A quadrilateral with only one pair of parallel sides
- 22. The line segment between two points on a given curve