Geometry

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Across
  1. 6. mean the positive number x such that a / x = x/ b
  2. 7. polygon with exactly four sides
  3. 9. angles of a polygon that share a side
  4. 12. the "if" and "then" parts of a statement are switched
  5. 15. a quadrilateral that has two pairs of opposite sides that are parallel
  6. 16. quadrilateral that has four congruent sides
  7. 18. statement - the ratio of the lengths of corresponding sides
  8. 19. a comparison of two quantities
Down
  1. 1. bisector Ray that cuts the angle exactly in half, making two equal angles
  2. 2. the side opposite of the right angle in a triangle
  3. 3. distance around a circle
  4. 4. triangle a triangle with three equal sides
  5. 5. a segment connecting any vertex of a triangle to the midpoint of the opposite side
  6. 8. all corresponding lengths are the same
  7. 10. 3 or more lines meet at a single point
  8. 11. a statement that two ratios are equal
  9. 13. triangle a triangle measured more than 90°
  10. 14. point at which two line segments intersect forming an angle
  11. 16. angle an angle that measures 90°
  12. 17. corresponding angles are congruent; corresponding sides are proportional