Chapter Overview
This chapter deals with three-dimensional (3D) shapes and teaches how to calculate their surface areas and volumes. Students learn the formulas for common solids such as cubes, cuboids, cylinders, cones, spheres, and hemispheres. The chapter also includes problems involving the conversion of one solid shape into another, real-life applications, and the concept of capacity and space occupied by objects.
Important Keywords
- Surface Area: The total area of the outer surfaces of a 3D object.
- Volume: The amount of space enclosed within a 3D object.
- Lateral Surface Area (LSA): The surface area of the sides excluding the top and bottom.
- Total Surface Area (TSA): The sum of all the areas of all the surfaces of a 3D object.
- Capacity: The volume a container can hold, usually measured in liters.
Detailed Notes
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