Geometry Crossword

1. A transformation in which a figure is flipped over a line, called a line of reflection
5. Motion, a transformation that doesn't preserve size and shape.
6. The original figure prior to a transformation.
9. leg, In a right triangle, the side opposite the given acute angle.
12. Angle, Equals exactly 180°.
14. A change in the position, size, or orientation of a figure.
16. The angle formed by extending a side of a polygon.
17. The ratio of the length of the opposite side to the length of the hypotenuse.
19. A transformation in which the image is similar (but not congruent) to its pre-image.
20. Motion, A transformation that preserves size and shape.

2. Sum Theorem, The sum of the measures of the angles of a triangle is 180°.
3. The ratio of the length of the adjacent side to the length of the hypotenuse.
4. The ratio of the length of the opposite side to the length of the adjacent side.
7. Symmetry, A rotation of less then 360° can map the shape onto itself.
8. Leg, In a right triangle, the shorter side that forms the given acute angle with the larger side, the hypotenuse.
10. Angle, Equals exactly 90°.
11. Theorem, a² + b² = c²
13. The resulting figure after a transformation.
15. triangle theorem, If two sides are congruent, then the angles opposite them are congruent.
18. Angle, Angle on the interior of a polygon that is formed by two sides of the polygon.