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| Math Central | Quandaries & Queries |
| a 4 foot by 8 foot sheet of plywood is how many acres in a scale (1:160) |
Hi Dave,
If the scale is $1:160$ then $4$ feet converts to $4 \times 160 = 640$ feet and $8$ feet converts to twice that length. The area in square feet is then the product of these two dimensions. There are $43,560$ square feet in an acre so divide the area in square feet by $43,560$ to find the area in acres.
Penny
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