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The word ‘Quadrilateral’ is derived from the Latin words ‘quadri’ (meaning ‘four’) and
‘latus’ meaning ‘side’. So, a Quadrilateral basically means ‘four sides’. A Quadrilateral is a
a geometrical dimensional figure having four sides (edges) and four vertices (corners).
The sum of all the interior angles of a ‘quadrilateral’ is 360°. Quadrilaterals can be regular or irregular. There are different types of quadrilaterals based on their unique
properties such as a square, rectangle, kite, parallelogram, rhombus, and more. It is
important to get in-depth knowledge of quadrilaterals as our world is full of
quadrilaterals such as mobile phones, laptop, chart paper, books, TV, doors and the list
just goes on.
3.1 Introduction
3.2 Polygons
3.3 Sum of the Measures of the Exterior Angles of a Polygon
3.4 Kinds of Quadrilaterals
3.5 Some Special Parallelograms
Section 3.2 – In this section, you’ll learn what a polygon is, classification of polygons,
diagonals, convex and concave polygons, regular and irregular polygons, angle sum
property and more.
Section 3.3 – In this section, you’ll study the exterior and interior angles of a
polygon and will be able to find the number of sides of a regular polygon whose exterior
angles are given.
Section 3.4 – In this section, you’ll learn different kinds of Quadrilaterals based on the
nature of the sides or angles of a quadrilateral, such as a trapezium, kite, parallelogram
and its elements, diagonals and angles.
Section 3.5 – In this section, you’ll acquire knowledge about some more special
parallelograms such as rhombus, rectangle and square.
Several examples are provided, along with their solutions for a clear understanding of
Quadrilaterals. To know more about the Class 8 Maths Chapter 3 Understanding
Quadrilaterals, you should explore the exercises below. You can also download the
Understanding Quadrilaterals Class 8 NCERT Solutions PDF, solved by expert Maths trainers.
Published on 2020-02-13 09:59:22 by arunima. Last Modified on 2020-02-13 09:59:22
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