Across
- 5. a ray that divides a given angle into two congruent angles each half the size of the given angle
- 9. pairs of nonadjacent angles that lie on the same side of a transversal of two lines and in a corresponding positions
- 12. a transformation that flips a figure over a line of reflection
- 13. two angles that share a vertex and a side but no points in their interiors
- 14. part of a line with two endpoints
- 15. lines that intersect to form right angles
Down
- 1. a transformation that turns a figure about a fixed point, called the center of rotation
- 2. figures that have the same size and shape
- 3. angles between two lines and on opposite sides of a transversal
- 4. the sum of two angles is 90
- 6. a line, segmen, or ray that is perpendicular to a segment at its midpoint
- 7. do not intersect
- 8. closed plane figure with at least three sides
- 10. a polygon with all its sides congruent and all its angles congruent
- 11. two angles whose measure up to 90