MAHARASHTRA Class 10: Combination of Solids Videos | Concepts and problem solving related to combination of solids

Surface area of the cuboid = 2(lb + bh + lh)

 = b = h = x

Surface area of the cuboid = 2(3x²) = 6x² = 6l² = 6b² = 6h² 

Surface area of a cylinder is the sum of the areas of the lateral surface, circular top and circular base. 

Total surface area of a cone is the sum of the curved surface area and the area of the base. 

Total surface area of a hemisphere is the sum of the area of the base and the curved surface area of the hemisphere.