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1. | A polygon with congruent sides and angles |
3. | Angles in the same plane that have a common vertex and a common side |
5. | A figure formed by two rays with a common endpoint called the vertex |
6. | Two angles whose measures add to 90 |
7. | A figure has this if one half is a mirror-image of the other half |
8. | Two angles whose measures have a sum of 180 |
9. | A line that a figure is flipped across to create a mirror image of the original figure |
12. | Lines that intersect to form right angles |
13. | A triangle with all angles measuring less than 90 |
15. | A transformation of a figure that flips the figure across a line |
18. | A pair of opposite congruent angles formed by intersecting lines |
19. | On an angle or polygon, the point where two sides intersect |
21. | Lines in a plane that do not intersect |
22. | A quadrilateral with two pairs of parallel sides |
23. | A movement (slide) of a figure along a straight line |
24. | A change in the size or position of a figure |
25. | A four-sided polygon |
27. | An angle that measures 180 |
28. | A closed plane figure formed by three or more line segments that intersect only at their endpoints |
30. | A part of a line that starts at one endpoint and extends forever |
31. | A parallelogram with four right angles |