Quadrilaterals

Square

3) A square has 4 equal sides

2) It has rotational symmetry of order 4 IE if rotated about the centre it will land back on itself four times EG

6) Its diagonals are equal

4) Opposite sides are parallel

1) A square has 4 lines of symmetry

7) Diagonals bisect at 900

5) All corners are 900

A

CB

D8) Area = the length x length

Rectangle

3) A Rectangle has 2 pairs of equal sides

2) It has rotational symmetry of order 2 IE if rotated about the centre it will land back on itself two times EG

5) Its diagonals are equal in length

4) Opposite sides are parallel

1) A Rectangle has 2 lines of symmetry

6) Diagonals bisect at the centre

4) All corners are 900

A

CB

D7) Area = the length x breadth

Rhombus

3) A rhombus has 4 equal sides

2) Rotational Symmetry order 2

6) Its diagonals are equal

4) Opposite sides are parallel

1) A Rhombus has 2 lines of symmetry

7) Diagonals bisect at 900

5) Top and bottom corners same size and

side angles are the same size

A

D

C

B

Kite

3) A kite has 2 pairs of equal sides

2) No rotational Symmetry

6) Its diagonals are equal

4) Opposite sides are parallel

1) A kite has 1 line of symmetry

7) Diagonals bisect at 900

Parallelogram

3) A parallelogram is a quadrilateral which has 2 pairs of parallel edges.

2) It has rotational symmetry of order 2 IE if rotated about the centre it will land back on itself twice EG

A B

DC

8) Its diagonals bisect each other at the centre of rotation EG

4) Usually one pair of edges is longer than the other pair

1) A parallelogram has no lines of symmetry

6) Usually No interior angle (corner) is 90 degrees7) Angle ABD = Angle ACD and Angle CDB = Angle CAB

5) All its interior angles add up to 3600

AB

D C

9) Area = length x perpendicular height

3) A trapezium is a quadrilateral with only one pair of parallel edges.

2) It has no rotational symmetry. IE it will only land back on itself when it has turned around 3600.

6) It has diagonals but they do not bisect each other at the centre of the shape.

5) Length CO will equal DO and AB will equal BO

1) It usually has no line of symmetry

4) It has no angle the same

OA

DC

B