Quadrilateral Definition Quadrilateral Definition states that a quadrilateral is a polygon having 4 sides. ABCD is a quadrilateral and AC and BD are its diagonals. Types of Quadrilaterals There are different types of quadrilaterals based on their properties. The names of quadrilaterals are as follows: Parallelogram Rectangle Rhombus Square Trapezium These are some of the special quadrilaterals.

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Parallelogram A parallelogram has its opposite pairs of sides parallel. Its other properties are: (i) The opposite sides are equal. (ii) The opposite angles are equal. (iii) The diagonals bisect each other. In the figure above, the perpendicular AL to DC has been drawn. AL is called the height of ABCD. Rectangle A rectangle is a parallelogram having all angles equal. Its other properties are: (i) The diagonals are equal. (ii) Each angle is a right angle. Learn More Free Online Tutoring For Algebra

Rhombus A rhombus is a parallelogram having all sides equal. Its other properties are: (i) The diagonals bisect each other at right angles. (ii) The diagonals bisect the angles at each vertex. Square A square is a parallelogram having all its sides equal and all its angles equal. Its other properties are: (i) The diagonals bisect each other at right angles and are equal. (ii) The diagonals bisect the angles at each vertex and each half is equal to 45o.

Formula for Area of a Rectangle Area of a rectangle specifies an area in the coordinate space that is enclosed by the rectangular object. To find the area of a rectangle, multiply the length and the width. Area is usually measured in square units such as square inches, square feet or square meters. In the above figure, the length of the rectangle is "l" and the width of the rectangle is "w". Therefore, the area of the rectangle formula is (l X w) square units. Finding Area of a Rectangle Area of rectangle = l x w, Where l = length, and w = width. That is, it is the product of length and width.

Example Problems on Area of a RectangleBack to Top Below are some examples based on area of a rectangle Example 1: Find the area of a rectangle whose length l = 3m and breath b = 2m? Solution: Area of a rectangle = l x b =3x2 = 6m2 Example 2: Find the length of a rectangle whose area =23m and breath = 3m? solution: Area of a rectangle = l x b 23 = l x 3 Read More About Online Algebra Tutor

l = [Math Processing Error] l = 7.67m2 Example 3: Find the length of a rectangle whose area =28m and breadth = 4m? solution: Area of a rectangle = l x b 28 = l x 4 l = [Math Processing Error] l = 7m2 Example 4: Find the area of the garden, length and width of the garden is 600m and 400m? Solution: Area of the garden = l x b = 600 x 400 = 240000 m2

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