1. 2 cubes each of volume 64 cm are joined end to end. Find the surfac

1.	1. 2 cubes each of volume 64 cm are joined end to end. Find the surface area of the thresulting cuboid.
Answer» Let side length of cube is s Given,Volume of cube = 64s^3 = 64s = 4 When two cubes of side length 4 cm joined end to end then cuboid form is of length = 8 cm, breadth b = 4 cm, height = 4 cm Surface area of cuboid= 2(lb + bh + lh)= 2(84 + 44 + 44)= 2(32 + 16 + 16)= 2(64)= 128 cm^2

1. 2 cubes each of volume 64 cm are joined end to end. Find the surface area of the thresulting cuboid.

Answer»

Let side length of cube is s

Given,Volume of cube = 64s^3 = 64s = 4

When two cubes of side length 4 cm joined end to end then cuboid form is of length = 8 cm, breadth b = 4 cm, height = 4 cm

Surface area of cuboid= 2(l*b + b*h + l*h)= 2(8*4 + 4*4 + 4*4)= 2(32 + 16 + 16)= 2(64)= 128 cm^2