2 cube each of volume 64cm3 are joined end to end . Find the surface area of the resulting cuboid

2 cube each of volume 64cm3 are joined end to end . Find the surface a

1.	2 cube each of volume 64cm3 are joined end to end . Find the surface area of the resulting cuboid
Answer» Given, volume of each cube is 64 cm³..........⇒s³=64..........⇒s=∛64..... ...⇒s=4 cm............When two cubes are joined , ............the length of the resulting cuboid(l) = side + side = 4+4 = 8 cm..........its breadth(b) = side = 4cm...........And its height(h) = side = 4cm..........Total surface area of a cuboid = 2(lb+bh+hl)...........⇒TSA=2[(8)(4)+(4)(4)+(4)(8)].......⇒TSA=2(32+16+32).........⇒TSA = 2(80)........⇒TSA = 160 cm²..........∴ The surface area of the resulting cuboid is 160 cm..........