Geometry and Shapes: Quadrilaterals

Geometry and Shapes: Quadrilaterals

Geometry and Shapes: Quadrilaterals 150 150 SchoolTutoring Academy

The word quadrilateral has come from two Latin words namely quadri (means a four) and latus (means a side). Together a quadrilateral is a polygon with four sides. i.e. it’s a closed figure with 4 sides. A quadrilateral has 4 interior angles which add upto 360 degrees. There are different quadrilaterals which are classified into categories basing on their sides and angles which are listed below.

a)     Rectangle:

In a rectangle, all four angles are right angles and the opposite sides are equal in length.

b)     Square:

In a square all four angles are right angles and all the sides are equal in length.

c)      Rhombus:

In a rhombus also all the sides are equal in length and the opposite sides are parallel. But the angles are not right angles.  The opposite angles are equal. In a rhombus, the diagonals bisect each other at right angles.

d)     Parallelogram:

In a parallelogram, opposite sides and opposite angles are same.

e)     Kite:

A kite has two pairs of adjacent sides. Here, the adjacent sides are equal in length. In a kite, the diagonals intersect at right angles.  Also, the short diagonal is bisected by the longer one.

f)      Trapezium:

In a trapezium, one paid of opposite sides are parallel. A trapezium is called an isosceles trapezium if the sides that are not parallel are equal in length.


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