Geometry CH7 Lessons 7.3 thru 7.5 Vocab

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Across
  1. 3. states that if both pairs of opposite sides of a quadrilateral are congruent, then the quadrilateral is a parallelogram.
  2. 4. states that a quadrilateral is a square if and only if it is a rhombus and a rectangle.
  3. 6. states that if the diagonals of a quadrilateral bisect each other, then the quadrilateral is a parallelogram
  4. 10. states that if both pairs of opposite angles of a quadrilateral are congruent, then the quadrilateral is a parallelogram.
  5. 11. a parallelogram with four congruent sides.
  6. 12. states that a parallelogram is a rhombus if and only if its diagonals are perpendicular to each other.
Down
  1. 1. a parallelogram with four congruent sides and four right angles.
  2. 2. states that a parallelogram is a rhombus if and only if it has diagonals that bisect a pair of opposite angles.
  3. 5. states that a parallelogram is a rectangle if and only if its diagonals are congruent.
  4. 7. states that a quadrilateral is a rhombus if and only if it has four congruent sides.
  5. 8. states that a quadrilateral is rectangle if and only if it has four right angles.
  6. 9. a parallelogram with four right angles.