Answer:

lsa of cuboid is 2h(l+b) so h= 3 b= 2 and l=4x2=8 , applying formula, 2x3(8+2)= 6x10=60cm²

answer is 60cm²

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Answer:

88 cm^2

Step-by-step explanation:

surface area of a cube = 2lh + 2bh + 2lb

surface of a cube without a face = 2lh + 2bh + lb

= 2(4x3) + 2(2x3) + (4x3)

= 24 + 12 + 8

= 36 + 8

= 44

So for two cubes combined to make a cuboid ,

44 x 2 = 88 cm^2