CBSE 9 Mathematics | 8. Quadrilaterals by Akhil | Learn Smarter
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

8. Quadrilaterals

Enroll to start learning

You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.

Sections

  • 8

    Quadrilaterals

    The section delves into the properties of parallelograms, including congruence of triangles formed by diagonals, equal opposite sides and angles, and the unique characteristics of rectangles and rhombuses.

  • 8.1

    Properties Of A Parallelogram

    This section explores the properties of parallelograms, including the equal lengths of opposite sides and angles, as well as the congruence of triangles formed by diagonals.

  • 8.2

    The Mid-Point Theorem

    The Mid-point Theorem highlights the relationship between the mid-points of the sides of a triangle and its third side.

  • 8.3

    Summary

    In this section, we summarize key properties of parallelograms, including the characteristics of their diagonals, sides, angles, and relationships with triangles.

Class Notes

Memorization

Revision Tests

Chapter FAQs