Across
- 2. Lines/In a coordinate plane, two nonvertical lines are parallel if and only if they have the same slope.
- 5. quadrilateral with four right angles
- 6. lines/Two nonparallel lines in space that do not intersect are called skew lines
- 10. of symmetry/A line that divides a planar figure into two congruent reflected halves.
- 12. with four sides
- 13. Lines/In a coordinate plane, two nonvertical lines are perpendicular if and only if the product of their slopes is -1.
- 16. Postulate/If two lines cut by a transversal are parallel, then corresponding angles are congruent.
- 17. line, ray, or segment that intersects two or more coplanar lines, rays, or segments, each at a different point. Alternate Interior/A line that divides a planar figure into two congruent
Down
- 1. angles/are the angles opposite each other when two lines cross
- 3. interior/two nonadjacent interior angles that lie on opposite sides of a transversal
- 4. with two pairs of parallel sides.
- 7. quadrilateral with one and only one pair of parallel sides.
- 8. interior/When two lines are crossed by another line
- 9. angles/Congruent Angles have the same angle
- 11. Theorem/to the same line, then the two lines are parallel
- 14. of the Alternate/If two lines are cut by a transversal in such a way that alternate interior angles are congruent, then the two lines are parallel
- 15. Theorem/If two coplanar lines are perpendicular to the same line, then two lines are parallel