Geometry December Vocabulary

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Across
  1. 4. a geometric tool used to draw circles and parts of circles called arcs
  2. 6. two lines that intersect to form right angles
  3. 8. two angles whose measures have a sum of 180°
  4. 13. a formula used to calculate the distance between two points
  5. 14. a line that intersects two coplanar lines a two distinct points
  6. 17. two angles that lie outside coplanar lines but on opposite sides of a transversal
  7. 18. two angles that lie inside coplanar lines but on opposite sides of a transversal
  8. 19. two angles that lie inside coplanar lines, on the same side of a transversal, with no other angles between them
Down
  1. 1. two angles that lie on the same side of a transversal, but one is outside coplanar lines and one is inside coplanar lines
  2. 2. a formula used to calculate the midpoint of a segment
  3. 3. two angles whose measures have a sum of 90°
  4. 5. a line, segment, or ray that bisects an angle into two congruent angles
  5. 7. a ruler
  6. 9. two coplanar angles with a common side, a common vertex, and no common interior points
  7. 10. a line, segment, or ray that is perpendicular to a segment at its midpoint
  8. 11. the sum of the lengths of the sides of a polygon
  9. 12. a geometric drawing
  10. 15. the perimeter of a circle
  11. 16. two angles whose sides are opposite rays
  12. 18. the amount of space occupied by a polygon