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Revision Notes

Quadrilaterals

CBSE · Class 8 · Mathematics

Quick revision notes for Quadrilaterals — CBSE Class 8 Mathematics. Key concepts, formulas, and definitions for last-minute revision.

45 questions24 flashcards5 concepts

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Key Topics to Revise

1

Basic Concepts and Rectangle

  • A quadrilateral is a closed figure with four sides and four vertices
  • Sum of all interior angles in any quadrilateral = 360°
  • Rectangle: A quadrilateral where all angles are 90° and opposite sides are equal
2

Square - Special Rectangle

  • Square: A quadrilateral where all angles are 90° and all sides are equal
  • Every square is a rectangle, but not every rectangle is a square
  • Diagonals of a square are equal, bisect each other at 90°, and bisect the angles
3

Parallelogram

  • Parallelogram: A quadrilateral where opposite sides are parallel
  • Opposite sides are equal in length
  • Opposite angles are equal
4

Rhombus

  • Rhombus: A quadrilateral where all sides are equal
  • Every rhombus is a parallelogram
  • Opposite angles are equal, adjacent angles are supplementary

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Full Notes

Key Concepts

A quadrilateral where all anglesA special rectangle where all sidesA quadrilateral where opposite sidesA quadrilateral where all sidesThe sum of all interior angles

Frequently Asked Questions

What are the important topics in Quadrilaterals for CBSE Class 8 Mathematics?
Quadrilaterals covers several key topics that are frequently asked in CBSE Class 8 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Quadrilaterals — CBSE Class 8 Mathematics?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Quadrilaterals

All 7 chapters — CBSE Class 8 Mathematics Revision Notes

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