It is important for class 10th exam 2025
NCERT Class 10 Mathematics textbook is titled "Surface Areas and Volumes."
This chapter introduces the Area of ​​sector and concepts of calculating the surface area and volume of different 3D geometric shapes such as cubes, cuboids, spheres, hemispheres, cones, and cylinders. It explores how to apply formulas to find the surface area and volume for these solids, both individually and in combination.
The chapter begins with a review of the basic properties of these shapes and progresses to their respective surface area and volume formulas:
Surface Area: The total area of all the faces (or curved surfaces) of a solid object.
Volume: The amount of space occupied by the solid object.
Key concepts covered in this chapter include:
Surface Area and Volume of Cubes and Cuboids: Formulas for calculating the total surface area and volume.
Surface Area and Volume of Spheres, Hemispheres, Cones, and Cylinders: Understanding how to calculate areas and volumes for curved surfaces and solid parts.
Combination of Solids: Problems where different solids are combined to form a new shape, and the total surface area or volume is calculated accordingly.
The chapter also includes practical problems, helping students understand real-world applications of surface area and volume calculations. The main aim is to enhance spatial reasoning and geometric understanding through the application of mathematical formulas.
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