Conditions that Guarantee a Quadrilateral is a Parallelogram

Math - Grade 9 / Geometry

Sample Question

Which of the following statements is sufficient to guarantee that a quadrilateral is a parallelogram?

  • The diagonals are perpendicular.
  • The opposite angles are supplementary.
  • The diagonals bisect each other.
  • One pair of opposite sides is congruent.

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Quipper School Philippines Curriculum

Math - Grade 9