The volume of a 3D shape is the space inside it. This cuboid contains 12 small cubes. Each small cube has a volume of 1 cm 3. The volume of the cuboid is 12 cm 3. The surface area of a 3D shape is the ...

Mathematics for CBSE Class 9 introduces many foundational concepts that serve as building blocks for higher classes. Topics such as algebraic identities, the surface areas and volumes of 3D shapes, ...