Answer:
The scale of the shopping center drawing is 1 : 72.
Step-by-step explanation:
- Step 1 Explanation and Formula
The drawing scale is the ratio of drawing size to actual size. To determine the scale of the drawing, we need to know about the formula first which is given by :
scale = drawing size : actual size
From the question above we know :
drawing size = 7 inches
actual size = 42 feet
Before substituting the parameter, we need to change the unit of size to inches.
actual size = 42 feet = 504 inches
Substitute the parameter
scale = drawing size : actual size
scale = 7 : 504
scale = 1 : 72
Hence, the scale of the shopping center drawing is 1 : 72.
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