11. Surface Areas and Volumes


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Description:

Strengthen your understanding of Chapter 13: Surface Areas and Volumes with this well-structured NCERT Solutions PDF, aligned with the latest CBSE Class 9 Mathematics syllabus (2025–26). It provides accurate, step-by-step answers to all textbook problems, helping students master the formulas for surface areas, curved surface areas, total surface areas, and volumes of different 3D shapes.

Ideal for Class 9 CBSE students, teachers, and parents for revision, homework help, and concept reinforcement.

What’s Inside This PDF?

✅ Complete solutions to all NCERT in-text and end-of-chapter questions
 ✅ Clear explanations of formulas for cones, cylinders, spheres, hemispheres, and combinations of solids
 ✅ Step-by-step problem-solving approach with proper unit usage
 ✅ Answers prepared as per CBSE’s latest marking scheme
 ✅ Based entirely on the official NCERT Class 9 Maths Chapter 13 textbook

Why Use This NCERT Solution?

✅ Clarity-Focused: Simplifies surface area and volume concepts for easy understanding
 ✅ Exam-Ready Language: Solutions follow CBSE’s expected answer format
 ✅ Time-Saving: Perfect for quick homework help and fast revisions
 ✅ CBSE 2025–26 Compliant: Fully updated and syllabus-accurate

Frequently Asked Questions (FAQs)

CSA = 2πrh, where r is radius and h is height.

TSA = 4πr² = 4π(7²) = 616 cm².

Volume = (1/3)πr²h.

Volume = a³ = 5³ = 125 cm³.

Square metres (m²).

 

 

 

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