Question

2 cube each of volume63cm3 are joined end to end find the surface area of the resulting cuboid


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Answer 1

Step-by-step explanation:Given : - ➡ Volume of one cube = a³= 64cm³

➡a³= 64

➡a = ³√64

➡a= 4cm

➡so side of cube = 4cm

➡surface area of cuboid = 2(lb+bh+hl) ➡now surface area of combined cuboid = ➡2(lb+bh+hl)+2(lb+bh+hl) - 2lb

➡2lb+2bh+2hl+2lb+2bh+2hl-2lb

➡2lb+4bh+4hl

➡2×4×4+4×4×4+4×4×4

➡32+64+64

➡160cm²