Properties of Quadrilaterals

• Square:

  • It has 4 sides
  • It has four right angles
  • Its opposite sides are parallel
  • Its diagonals bisect each other at right angles
  • It has 4 lines of symmetry
  • It has rotational symmetry of order 4

  
• Rectangle:

  • It has two pairs of equal sides
  • It has four right angles
  • Its opposite sides are parallel
  • Its diagonal bisect each other at
  • It has two lines of symmetry
  • It has rotational symmetry of order two

  
• Parallelogram:

  • It has two pairs of equal sides
  • It has two pairs of equal angles
  • Its opposite sides are parallel
  • Its diagonals bisect each other
  • It has no line of symmetry
  • It has rotational symmetry of order two

  
• Rhombus:

  • It has 4 equal sides
  • It has two pairs of equal angles
  • Its opposite sides are parallel
  • Its diagonals bisect each other at right angles
  • It has two lines of symmetry
  • It has rotational symmetry of order two

  
• Kite:

  • It has two pairs of adjacent sides of equal length
  • It has one pair of equal angles
  • Its diagonals intersect at right angles
  • It has one line of symmetry

  
• Trapezium:

  • It has one pair of parallel sides
  • some trapezia have one line of symmetry

  
• Arrowhead:

  • It has two pairs of adjacent sides equal length
  • It has one pair of equal angles
  • Its diagonals intersect at right angles outside the shape
  • It has one line of symmetry