S Chand ICSE Mathematics Class 9 Solution Eighteenth Chapter Surface Area and Volume of 3D Solids Exercise 18A (1) Find the surface area of the cuboids whose dimensions are: (a) 3m, 4m, 5m (b) 4 cm, 1.7 cm, 2.3 cm Solution: (a) Surface Area = 2(3×4 + 4×5 + 5×3) m2 = 2 (12 + […]