Basic Geometry Vocab

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Across
  1. 2. the point halfway between two given points.
  2. 4. plane figure with three straight sides and angles and typically five or more.
  3. 9. angle/ an angle that has a measure more than 90^o and less than 180^o.
  4. 11. a polygon with three sides.
  5. 14. bisector/ a line or ray that divides an angle in half.
  6. 16. two rays sharing a common endpoint.
  7. 21. half a circle that is a 180^o arc.
  8. 22. the geometric figure formed by two points.
  9. 23. angle/ a 180^o angle.
  10. 26. a part of a line starting at a particular point and extending infinitely in one direction.
  11. 27. segment/ all points between two given points.
  12. 29. exactly equal in size and shape.
  13. 30. bisector/ geometric figure that divides a line segment in half.
  14. 31. triangle/ a triangle with three congruent sides.
Down
  1. 1. center to a circles perimeter.
  2. 3. the side of a right triangle opposite the right angle.
  3. 5. a leg of a triangle.
  4. 6. the geometric figure formed at the intersection of two distinct lines.
  5. 7. triangle/ a triangle for which all three sides have different lengths.
  6. 8. a corner point of a geometric figure.
  7. 10. a flat surface extending in all directions.
  8. 12. triangle/ a triangle with two sides that are the same length.
  9. 13. line through the whole circle.
  10. 15. polygon/ polygon that is equiangular.
  11. 17. at a 90^o angle perpendicular lines have slopes that are negative recipricals.
  12. 18. angle/ a 90^o angle.
  13. 19. triangle/ a triangle which has a right 90^o interior angle.
  14. 20. the locus of all points that are a fixed distance from a given point.
  15. 24. two points or lines that never meet.
  16. 25. angles/ two angles in a plane which share a common vertex and a common side but do not overlap.
  17. 28. angle/ an angle that has a measure less than 90^o.