Answer:
Explanation:
The total surface area = 2(lb+lh+bh)
With given information, 2(4x+4x+4*4) = 128
=> 2(8x+16) = 128
=> 16x + 32 = 128
=> 16x = 96
=> x = 6
Therefore, the length = 6
x = 6 cm
The surface area: 128 cm^2
32 + 16x = 128
Note: The surface area of a cuboid consists of 6 faces
16x=96 -> x = 6
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