Question

three cubes each of 4cm are joined end to end find the surface area of the resulting cuboid​

Answer 1

Answer:

224cm²

Step-by-step explanation:

the resulting cuboid has

l = 4*3 = 12cm

b = 4cm

h = 4cm

csa of the cuboid so formed = 2 (lb+bh+hl)

                                                = 2 (12*4 + 4*4+ 4*12)

                                                 = 224cm²

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Answer 2

Answer:

• 3 cubes of side 4cm joined end to end=>
• length of cuboid=4+4+4=12cm
• breadth=4cm
• height=4cm
• s.a of cuboid=2(lb+bh+hl)
• = 2[(12×4)+(4×4)+(4×12)]
• =2[48+16+48]
• =2×112
• =224cm^2

hope this helps