Question

Drag the tiles to the correct boxes to complete the pairs.

Match the scale and the actual area to the area of the corresponding scale drawing.
scale: 1 inch to 5 feet
actual area: 225 square feet
scale: 1 inch to 7 feet
actual area: 147 square feet
scale: 1 inch to 8 feet
actual area: 256 square feet
scale: 1 inch to 4 feet
actual area: 128 square feet
area of scale drawing
scale and actual area
scale drawing area:
9 square inches
arrowRight
scale drawing area:
3 square inches
arrowRight
scale drawing area:
8 square inches
arrowRight
scale drawing area:
4 square inches
arrowRight

Answer 1

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Answer 2

225sqft with 1in -> 5ft = 9sqin

147sqft with 1in -> 7ft = 3sqin

256sqft with 1in ->8ft = 4sqin

128sqft with 1in -> 4ft = 8sqin

Explanation:

To change from feet to inches, you just divide by the scaling factor (5, 7, 8, or 4) in this problem. But because it is square feet to square inches, you must divide by the square of the scaling factor:

5*5 = 25

7*7 = 49

8*8 = 64

4*4 = 16

So:

225/25=9

147/49 = 3

256/64 = 4

128/16 = 8