Quadrilaterals
CBSE · Class 8 · Mathematics
Quick revision notes for Quadrilaterals — CBSE Class 8 Mathematics. Key concepts, formulas, and definitions for last-minute revision.
Key Topics to Revise
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
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
Parallelogram
- Parallelogram: A quadrilateral where opposite sides are parallel
- Opposite sides are equal in length
- Opposite angles are equal
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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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?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.
Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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