Math
Across
- 1. a line that has one endpoint and goes on infinitely in only one direction
- 4. a dot and named by a capital letter
- 6. a line or ray that divides an angle into two congruent angles
- 7. the basic structure from which lemmas and theorems are derived
- 8. to the opposite of another operation.
- 12. if their corresponding angles are congruent
- 13. the angle bounded by two lines perpendicular to each other
- 16. infinitely long collection of points extending in two opposite directions
- 17. a plane figure with ten straight sides and angles.
- 18. a proposition or statement that is demonstrated.
- 19. a parallelogram also has two pairs of equal-length sides, but they are opposite to each other
Down
- 2. the perpendicular segment from a vertex of a triangle to the opposite side
- 3. the distance around the edge of a shape.
- 5. a line that intersects two or more other lines.
- 6. used to define the amount of space taken up by a 2D shape or surface.
- 9. exceeding 90 degrees but less than 180 degrees.
- 10. gives the distances between pairs of points in terms of their coordinates
- 11. a pair of adjacent angles formed when two lines intersect.
- 14. a point at or near the middle of, or equidistant from, both ends, as of a line
- 15. a flat, two-dimensional surface that extends infinitely far.