Surface Area And Volumes | Exercise 12.1 | Chapter 12 | Class 10 Maths | NCERT | CBSE | SR Academy

Welcome to SR Academy, your trusted destination for Class 10 Maths NCERT Solutions and concept-based learning! In today’s video, we will cover Chapter 12 – Surface Areas and Volumes (Exercise 12.1) from the NCERT Class 10 Mathematics textbook, strictly based on the latest CBSE 2024–25 syllabus. This video provides step-by-step explanations for all questions in Exercise 12.1, focusing on Surface Areas of Combination of Solids — an important and scoring topic for your CBSE Board Exams. 📖 Chapter Overview: The chapter Surface Areas and Volumes deals with the study of three-dimensional (3D) shapes such as cubes, cuboids, cylinders, cones, spheres, and hemispheres. In Exercise 12.1, you will learn how to calculate the surface area of solids formed by combining two or more basic 3D shapes. You will understand how to: Find Curved Surface Area (CSA) of a combination of solids. Find Total Surface Area (TSA) when two solids are joined together. Visualize 3D shapes and apply surface area formulas practically. These skills help you relate mathematics to real-life examples — like finding the surface area of an ice cream cone, cylindrical containers, or toy shapes. 🧮 Key Formulas Used in This Exercise: Cylinder: TSA = 2πr(h + r), CSA = 2πrh Cone: CSA = πrl, TSA = πr(l + r) Sphere: TSA = 4πr² Hemisphere: TSA = 3πr², CSA = 2πr² 📚 Topics Covered in This Video: ✅ Introduction to Surface Areas and Volumes ✅ Understanding Combination of Solids ✅ Derivation of Curved and Total Surface Area ✅ Solving NCERT Exercise 12.1 Questions Step-by-Step ✅ Practical Examples and Diagrams ✅ Formula Application Tips ✅ CBSE Board Exam-Oriented Questions 💡 Learning Outcomes: 🔹 Understand the concept of combined solids 🔹 Calculate CSA and TSA accurately using formulas 🔹 Apply geometry to real-life problems 🔹 Strengthen problem-solving skills for board exams 🔹 Build a solid foundation for Exercise 12.2 (Volumes of Solids) 🎯 Why Watch This Video: ✔️ 100% NCERT-based solutions for Class 10 Maths ✔️ Step-by-step explanation for every question ✔️ Based on latest CBSE syllabus (2024–25) ✔️ Easy visualization of 3D figures for better understanding ✔️ Helpful for both English and Hindi medium students ✔️ Best for Board Exam Preparation and Revision ✨ At the End of This Video, You Will Be Able To: ⭐ Solve all Exercise 12.1 questions independently ⭐ Understand how to use formulas correctly ⭐ Relate 3D figures with daily-life examples ⭐ Revise key formulas quickly for exams ⭐ Gain confidence for solving higher-level problems At SR Academy, we make Mathematics fun, clear, and exam-oriented through concept-based explanations and practical learning. 👉 Don’t forget to Like, Share, and Subscribe to SR Academy for more Class 10 Maths Chapter-wise NCERT Solutions. 🔔 Press the Bell Icon to get notifications for our latest educational videos!