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Quadrilaterals are shapes which have 4 straight sides. The sum of the interior angles of any quadrilateral add up to 360

## Special Types of Quadrilaterals ### Rectangle

A rectangle is a quadrilateral which has 2 sets of parallel sides. All the angles in a rectangle are equal to 90. ### Square A square is a regular type of quadrilateral, and a special type of rectangle which has 4 equal sides. All the angles in a square are equal to 90

The area of a square can be worked out by squaring one of its lengths. ### Parallelogram

a parallelogram is a quadrilateral with two sets of parallel sides. The opposite sides of a parallelogram are of equal length, and the opposite angles of a parallelogram are congruent. ### Trapezium

A Trapezium is a quadrilateral which has 2 parallel sides of different lengths. Area of Trapezium = ### Rhombus A rhombus is a quadrilateral that has 4 sides of equal length, and whose opposite angles are equal. The area can be worked out by multiplying the two diagonals together and the dividing by 2. ### Kite

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