Geometry crossword

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Across
  1. 3. of depression an angle formed by a horizontal line and a line going down
  2. 4. bisector a line or Ray that divides an angle into two congruent angles
  3. 5. angles occupy the same relative position at each intersection
  4. 9. angles two angles that equal 180
  5. 12. the longest side of a right triangle
  6. 14. the measurement from end to end
  7. 16. lines two lines that meet at an intersection
  8. 17. the amount of space an object takes up
  9. 18. the measurement of something from side to side
Down
  1. 1. lines lines the don't touch
  2. 2. the measurement of the whole surface
  3. 5. angles two angles that equal 90
  4. 6. angles A 90 degree angle
  5. 7. angles each of the pairs of opposite angles are made by two intersecting lines
  6. 8. the distance from the center of a regular polygon to the edge
  7. 10. interior angles when two lines are crossed by another line
  8. 11. the measurement from the base to the top
  9. 13. segment the joins the midpoints of two sides of a triangle
  10. 15. area the outside part of something
  11. 16. a possible outcome