How to do this question plz explain me step by step plzz

Answer

148cm^2

Explanation

A cuboid has equal width and length as it’s base is a square. So w or l = root 30

Since the volume of a cuboid is

Length • width • height

And we know length and width when multiplied are 30

30 • height = 120

Therefore height = 4

Now for surface area it’s

2 • h • l + 2 • h • w + 2 • l • w

2 • 4 • root 30 + 2 • 4 • root30 + 2 • 30 = 60 + 16root30 = 148~cm^2

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