Quadrilateral Family Tree

Annotations:

• Both pairs of opposite sides are congruent and parallel, Both pairs of opposite angles are congruent, The diagonals bisect each other, Consecutive angles are supplementary

1. Trapezoid

   Annotations:

   • Exactly one pair of opposite sides are parallel
   1. Isoceles Trapezoid

      Annotations:

      • One pair of opposite sides are parallel, Non parallel sides are congruent, Both sets of base angles are congruent, Diagonals are congruent
2. Rectangle: A parallelogram whose diagonals are congruent and whose angles measure 90'
   1. Square: Everything from Parallelogram, Rectangle, and Rhombus
3. Rhombus: A parallelogram with 4 equal sides

   Annotations:

   • Diagonals bisect each other and are perpendicular, All 4 sides are congruent