Geometry Crossword

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Across
  1. 5. Two ratios that are set equal to each other
  2. 7. Three or more points that lie on a straight line
  3. 9. Less than 90 degrees
  4. 12. an axis
  5. 13. line/line segment that divides the angle in two
  6. 16. Perimeter of a circle
  7. 18. A line segment that goes from one corner to another, but is not an edge
  8. 19. A set of three positive whole numbers that perfectly satisfy the Pythagorean theorem
Down
  1. 1. Half of a circle
  2. 2. The angle formed in the interior of a circle when two chords intersect on the circle
  3. 3. Non-adjacent, intersected lines
  4. 4. Same shape and size
  5. 6. A transformation that flips a figure
  6. 8. Half of a sphere
  7. 10. Amount of space in an object
  8. 11. A triangle that has two equal sides
  9. 12. Two angles with a common vertex
  10. 14. Points that lie on the same plane
  11. 15. Portion of the circumference of a circle
  12. 16. Adjacent/Hypotenuse
  13. 17. Mainly used to solve triangles