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Quadrilaterals - Coggle Diagram

- - - - The diagonals are perpendicular.
        
        Opposite angles of a rhombus have equal measure.
      - The two diagonals of a rhombus are perpendicular; that is, a rhombus is an orthodiagonal quadrilateral.
      - Its diagonals bisect opposite angles.
      - Rhombus
- - - - Opposite sides are parallel and congruent
        Adjust the rectangle above and satisfy yourself that this is so.
      - The diagonals bisect each other
      - The diagonals are congruent
- - - - The lower base angles are congruent.
      - The upper base angles are congruent.
      - Any lower base angle is supplementary to any upper base angle.
- - - - It has two lines of reflectional symmetry and rotational symmetry of order 2 (through 180°).
      - The two diagonals are equal in length.
      - Opposite sides are equal in length.