Friday, March 1, 2013

Learn Different Quadrilaterals

Introduction of quadrilateral:  We know that on combining three non-collinear points in pairs, the figure so obtained is a triangle. Now, let us mark four points and see what we obtain on combining them in pairs in some order. Such a figure formed by combining four points in an order is called a quadrilateral. In a quadrilateral, a pair of opposite sides is parallel. I like to share this Slope Intercept Formula with you all through my article.




Definition of Quadrilateral and its types:


Definition of Quadrilateral:   Quadrilateral is a geometrical figure that consists of f our end points called verticals joined to each other by straight-line segments or sides called edges. The quadrilateral are classified depends on the length of side, angle and diagonals of object.

Methods of Quadrilateral:

Parallelogram

Square

Rectangle

Rhombus

Trapezium

Kite

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Types of Description of quadrilateral:


Parallelogram:     Parallel lines are lines are the exactly same distance between two lines that has never cross. A couple of lines of quadrilateral that are parallelograms that you may already know about are squares and rectangles.

Formula:

Area = b × h sq. units (b – Base, h - Height)

Square:    The square is a parallelogram having an angle, equal to right angle and adjacent sides equal. Parallel lines are lines are exactly the same length and height that has never cross.

Formula:

Area = a2    (a - area)

Rectangle:     Parallel lines are the same distance between their two lines and that has never cross. Probably those angles know about a couple of lines quadrilateral that also called as parallel sides and four right angles.

Formula:

Area = l × b sq. units

Where

l – Length

and b – breadth)

Trapezoid:    A quadrilateral should have at least one pair of parallel sides. The quadrilateral one side of opposite sides are parallel if non parallel of opposite sides of a trapezoid are congruent it is called as isosceles triangle.

Formula:

Area = 1 / 2 (a + b) × h sq. units.

Rhombus:     All the four sides of this quadrilateral are equal. Rhombus is a parallelogram having its adjacent sides equal but more of whose angles is a right angles.

Formula:

Area = 1 / 2( d1 × d2) sq. units

Where

d1, d2 are diagonals.

Kite:    A quadrilateral with two pairs of equal sides and hence only one pair of equal angles. The longer one bisects its diagonal. The area of the kite is equal to the product of its diagonals.

Formula:

Area = 1 / 2 * d1 * d2

Where

d1, d2 are diagonals.

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