Across
- 1. having a position on the other or further side of something
- 6. any angle greater than 90°
- 7. askew, crooked
- 10. statements that are assumed to be true without proof
- 11. measures less than 90 degrees
- 12. a part of a line that has a fixed starting point but no end point
- 13. is at an angle of 90° to a given line, plane, or surface
- 14. in the same plane
- 15. they have the same shape and size
- 16. points lying in the same straight line
- 18. a perfectly round shape
- 19. a part of a line that is bounded by two distinct end points
- 20. a statement that has been proved
Down
- 2. they add up to 180 degrees
- 3. the longest side of a right triangle
- 4. close to or near something
- 5. the action of replacing something
- 8. a pair of opposite angles formed by intersecting lines
- 9. a plane figure with four equal sides and four right (90°) angles
- 17. the middle point of a line segment