Class 8 NCERT • Ganita Prakash Part 1 Portal (New Syllabus)
Ch 04: Quadrilaterals
Select a topic or study module below to explore properties of rectangles, squares, parallelograms, rhombuses, trapeziums, diagonal theorems, carpenter’s puzzles, and step-by-step textbook solutions.
Topic 01 • Quadrilateral Basics
Defining Four-Sided Polygons, Angle Sum Property & Interior/Exterior Relationships
Topic 02 • Rectangles
Exploring Equal Length Diagonals, Bisection Rules & Angle Proofs via Congruence
Topic 03 • Squares
All Sides Equal, 90° Angles & Perpendicular Equal Diagonals Intersection
Topic 04 • Parallelograms
Opposite Side Parallelism, Equal Opposite Sides, Alternate Angles & Diagonal Bisection
Topic 05 • Rhombus
All Sides Equal, Diagonals Intersecting at 90° & Differences from Squares
Topic 06 • Trapeziums & Kites
Analyzing Special Figures with Single Pairs of Parallel Sides or Adjacent Equal Pairs
Topic 07 • Puzzles & Proofs
Practical Wooden Strip Problems, Intersection Angles & Congruence Criteria (SAS, AAS)
Module 08 • Solutions & Quiz