geometry

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Across
  1. 2. three altitudes intersect
  2. 5. quadrilateral with one pair of parallel sides
  3. 10. the center of the incircle
  4. 11. equal distance
  5. 13. equal angles
  6. 14. line segment from a vertex to the midpoint
  7. 15. four-sided flat shapes,opposite sides are equal and parallel
  8. 16. plane figure with four straight sides and right angles
  9. 17. quadrilateral whose four sides all have the same length
Down
  1. 1. bisects another line segment at a right angle
  2. 3. center point of object
  3. 4. line that connects opposite corners
  4. 6. height of an object
  5. 7. same side lengths
  6. 8. point of concurrency
  7. 9. two sets of adjacent sides are congruent
  8. 12. splits an angle into two equal angles