Question

scale 1 inch : 6 feet what is the actual area of the dining room? blueprint area 7 in² actual area ? ft²

Explanation:

Step1: Find the scale - factor for area

The linear scale is 1 inch : 6 feet. For area, the scale - factor is the square of the linear scale - factor. Since the linear scale factor is 6 (because 1 inch represents 6 feet), the area scale - factor is $6^2=36$.

Step2: Calculate the actual area

Multiply the blueprint area by the area scale - factor. The blueprint area is 7 square inches. So the actual area $A = 7\times36$.
$A=252$ square feet.

Answer:

252