Across
- 3. two angles whose sum is 90 degrees.
- 5. coplanar infinite straight lines that do not intersect at any point.
- 7. two angles that are side by side and share a common vertex and a common side.
- 12. formed when a transversal passes through two lines.
- 13. an angle that is exactly equal to 90 degrees in measure.
- 15. any two angles whose measures sum to 180 degrees.
Down
- 1. identical in shape and size.
- 2. if they have the same shape, or if one has the same shape as the mirror image of the other.
- 4. an angle that measures more than 90° and less than 180°
- 6. the angle between adjacent sides of a rectilinear figure.
- 8. when two straight lines or rays meet at a common endpoint.
- 9. an angle that measures less than 90 degrees
- 10. the angles that lie opposite to each other when two lines intersect.
- 11. a point on a polygon where the sides or edges of the object meet
- 14. an infinitely long object with no width, depth, or curvature.