Answer:
Option B., 1 in.:3 ft, 4.5 ft by 9 ft, 40.5 ft²
Step-by-step explanation:
It is given in the question that 1 inches length on the blueprint corresponds to an actual length of 3 feet.
Therefore, the scale of the blueprint is 1 in. : 3 ft.
In the blueprint the dimensions of the bathroom
length = 3 inches and width = 1.5 inches ( scale = 1 in. = 3 ft )
The actual dimension of the bathroom's length = 3 inches = 3 × 3 = 9 feet
Actual bathroom's width = 1.5 inches = 3 × 1.5 = 4.5 feet
Actual area of the bathroom = Length × width
= 9 × 4.5 = 40.5 feet²
Therefore, the answer would be Option B., 1 in.:3 ft, 4.5 ft by 9 ft, 40.5 ft²