Geometry Project

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Across
  1. 3. An angle that measures less than 90°.
  2. 9. Angles that add up to 90 degrees.
  3. 10. Same shape, but not necessarily the same size.
  4. 12. A part of a line with one endpoint that extends forever in one direction.
  5. 13. A line or segment next to another line or segment.
  6. 15. If a=b and b=c, then a=c
  7. 16. Opposite angles formed by two intersecting lines.
  8. 18. The point that divides a line segment into two equal parts.
Down
  1. 1. To divide into two equal parts.
  2. 2. Two angles whose measures add up to 180°.
  3. 4. Same size and shape.
  4. 5. An angle that measures 120°
  5. 6. A rule that is always true in math.
  6. 7. An exact location in space with no size.
  7. 8. A rule used to prove geometric statements.
  8. 10. Identical on both sides of a line.
  9. 11. A quantity is equal to itself.
  10. 13. A figure formed by two rays with a common endpoint.
  11. 14. Lines in the same plane that never intersect.
  12. 17. Example: Vertical angles are congruent.