## Rectangle

A rectangle is a quadrilateral whose opposite sides are equal and parallel.

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*All the angles of a rectangle are right angles.*

AB = DC and AD=BC

*A rectangle has two axes of line symmetry.* It has rotational symmetry of order 2 i.e. ½ turn symmetry

*The diagonals of a rectangle are equal and bisect each other.* *(Bisect means cuts in half)*

*AC = BD.*

*OA=OB=OC=OD*

## Square

*A square is a special rectangle. * *It is a rectangle with all its sides equal.*

### AB ll CD and AD ll BC

### AB=BC=CD=DA

* A square has four axes of line symmetry. * * It has r*otational symmetry of order 4 i.e. ¼ turn symmetry

* The diagonals of a square * * (i)* *bisect** the angles of the square.* *(ii) bisect each other at right angles.* *(iii) bisect the mslsec.comrner angles.*

## Kite

*A kite is a quadrilateral with one axis of line symmetry.* *It has no rotational* symmetry.

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* A kite has two pairs of adjacent sides equal.*

an inverted kite

The diagonals cross at right angles, but do not bisect each other.

*Rhombus*

* *

*A rhombus is a special kite with two axes of symmetry.* It has rotational symmetry of order 2 i.e. ½ turn symmetry

*The diagonals of a rhombus bisect each other at right angles.* *The diagonals of a rhombus bisect the mslsec.comrner angles.*

*The opposite sides of a rhombus are parallel. * *All the sides are equal, and opposite angles are equal*.

*Parallelogram*

*A parallelogram is a quadrilateral with no axis of line symmetry.* It has rotational symmetry of order 2 i.e. ½ turn symmetry

* * *The opposite sides of a parallelogram are equal and parallel.* *The opposite angles of a parallelogram are equal.*

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*Trapezium*

A trapezium has one pair of parallel sides. *It has no rotational* symmetry.*An ordinary trapezium has no axis of line symmetry* *An isosceles trapezium has one axis of line symmetry*

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