Given the scale drawing of a one-bedroom apartment, what is the actual width of the apartment from the study to the bedroom?
A)4.5ft
B)18 ft
C)27 ft
D)30 ft

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