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Quadrilaterals, Fellysa Loeis 7.1 - Coggle Diagram

- - - - there are 2 pairs of parallel sides
        
        all four sides are equal in length
        
        opposite angles are equal, i.e.<BAD = <BCD and <ABC = <ADC
      - Diagonals bisects each other at right angles, i.e. AE = EC, BE = ED and <AEB = <BEC = <AED = <CED = 90°
- - - - there are 2 pairs of parallel sides
        
        all four angles are right angles
      - opposite sides are equal in length
    - - the two diagonals are 4.66 in length. diagonals bisect each other, i.e. AE = EC and BE = ED
- - - - opposite angles ere equal, i.e. <BAD = <BCD and <ABC = <ADC
        
        opposite sides are equal length
        
        Diagonals bisect each other, i.e. AE = EC and BE = ED
        
        there are 2 pairs of parallel sides
- - - - There is at least* one pair of parallel sides, i.e. AB//DC
- - - - there are at least** two pairs of equal adjacent sides, i.e. AD = DC and AB = BC
        
        Diagonals cut each other (not bisect) at right angles, i.e. <AEB = <BEC = <AED = <CED = 90°
- - - - all 4 angles are right angles
        
        all 4 sides are equal in lenght
        
        the two diagonals are equal in length. diagonals bisect each other at right angles, i.e. AE = EC, BE = ED and <AEB = <BEC = <CED = <AED = 90°. Diagonals bisect the interior angles, e.g. <BAC = <CAD = 45° and <ABD = <CBD = 45°
        
        there are two pairs or parallel sides