ch01_p31 - 31. (a) Using the fact that the area A of a...

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31. (a) Using the fact that the area A of a rectangle is (width) × ( length), we find () ( ) ( ) total 2 2 3.00acre 25.0perch 4.00perch 40 perch 4 perch 3.00 acre 100perch 1acre 580 perch . A =+ §· ¨¸ ©¹ = We multiply this by the perch 2 rood conversion factor (1 rood/40 perch 2 ) to obtain the answer: A total = 14.5 roods. (b) We convert our intermediate result in part (a):
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