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1800-102-2727 • Class 8 Maths Chapter 3: The chapter likewise covers various polygons and contains four exercises that help the students in understanding these shapes appropriately. The arrangement of quadrilaterals is dependent on the nature of its sides or angles.

## Class 8 Maths Chapter 3- Understanding Quadrilaterals- Important Topics

Polygons
A closed curve consisting of only line segments is called a polygon. The sides of a polygon never cross each other.

Classification of Polygons based on the Number of Sides

• Triangle - 3 sides
• Pentagon – 5 sides
• Hexagon – 6 sides
• Heptagon – 7 sides
• Octagon - 8 sides
• Nonagon - 9 sides
• Decagon - 10 sides

Diagonals
Diagonals are the line segments connecting two non-consecutive vertices of a polygon.

Polygons based on Shape

• A concave polygon has one of its interior angles greater than 90°
• A convex polygon is one that has all its interior angles less than 180°.

Polygons based on Regularity

• A regular polygon has all the sides, and all the angles equal, i.e. a square.
• An irregular polygon is neither equilateral nor equiangular, i.e. a rectangle.

The sum of all the inner angles of a polygon equals to [(n−2) ×180°], where n refers to the number of sides. The sum of all the external angles of a polygon equals to 360°.

Parallelogram

• A parallelogram has four sides and four angles.
• Also, the opposite sides and opposite angles of a parallelogram are equal.
• Opposite angles in a parallelogram are equal.
• Adjacent angles in a parallelogram are supplementary.
• The diagonals of a parallelogram are known to bisect each other at the point of intersection.

## FAQs for NCERT Solutions For Class 8 Maths

Q. How are the NCERT solutions for Class 8th crucial?

A. NCERT solutions provide topic-wise solutions of the chapters, that help the students to prepare for their exams and understand each topic nicely. The basic concepts are cleared by providing step-by-step methods. Mathematics of class 8 is fundamental and challenging, so it is essential to have a solution handy. Aakash even provides some new methods and techniques to solve the problems which make the studies easier.

QHow do I find the Aakash NCERT solutions?

A. You can find NCERT Solutions on the Aakash website. The solutions are arranged in chapter-wise and topic-wise order. They can be found in a pdf format.

QHow to score good marks in the internal assessments of Mathematics in the 8th grade?

A. The best way to score marks in Mathematics would be to practise. Just going through the solutions for the NCERT PDF provided by Aakash won’t help you to the same level. However, if you practise the questions using the Aakash NCERT solutions, then it will help you drastically to score excellent marks in the internal assessments for class 8th Mathematics.

Q. Where and how can a student download the free PDF latest NCERT solutions for class 8 for all subjects?

A. For the ease of students, we at Aakash have provided a PDF file for NCERT Solutions of all subjects, all topics for all classes. The detailed solutions are prepared by our senior and experienced faculty which give students an in-depth understanding of the concepts rather than the particular question.

Q. Why Choose Aakash for Class 8 NCERT Solutions?

A. The solutions provided by us are prepared by IITians and well-trained faculty members. Thus, they are reliable, precise and give the best techniques to solve any problem. We also include some tips to enable students to solve problems with speed and accuracy.

## NCERT Class 8 Maths Solutions - Chapterwise Free PDFs for Download ### NCERT Solutions For Other Class

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