Geometry

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Across
  1. 1. a 180 degree angle is frequently called a________angle
  2. 4. a line that runs from the center of a circle to its edge
  3. 5. a quadrilateral with with 2 sets of congruent parallel angles
  4. 7. a line with a definite starting point but no ending
  5. 9. an angle that is less than 90 degrees
  6. 10. angles that are opposite to each other when two lines intersect are______angles
  7. 11. Two lines that intersect to form four right angles are_____lines
  8. 14. a six sided shape
  9. 16. a shape with 4 sides
  10. 18. a point were two rays meet
Down
  1. 1. a quadrilateral with 4 equal sides
  2. 2. a triangle which has two sides equal is a________triangle
  3. 3. the amount of space occupied by any three-dimensional solid
  4. 6. lines that run in the same direction and never meet are said to be?
  5. 8. the distance around a circle
  6. 12. a shape with 5 sides
  7. 13. the amount of space taken by a shape
  8. 15. A closed plane figure formed by three or more line segments
  9. 17. the space between two lines that intersect