Page 100 - Calculating Agriculture Cover 20191124 STUDENT - A

9-10 Land, Soils and Fertilizers CH 9]

USING THE HAND CALCULATOR TO CALCULATE ACREAGE FROM A
DESCRIPTION.

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Locate and determine how many acres are in the property located at N / 2, NW / 4, SW / 4,SE / 4,
Section 15 of T4N,R4E, Principal Meridian Base Line. Remember to BEGIN at the END of the
description.

Solution A: Convert all fractions to their decimal equivalent.

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Section 15 SE / 4 SW / 4 NW / 4 N / 2
CLC 640 ac x 0.25 x 0.25 x 0.25 x 0.50 = 5 ac
CL 640 X .25 X .25 X .25 X .5 = 5 5 acres

Solution B: Use only the fraction denominators.

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Section 15 SE / 4 SW / 4 NW / 4 N / 2
CLC 640 ac ÷ 4 ÷ 4 ÷ 4 ÷ 2 = 5 ac
CL 640 ÷ 4 ÷ 4 ÷ 4 ÷ 2 = 5 5 acres

Solution C: Use the fraction numerator and denominators.

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Section 15 SE / 4 SW / 4 NW / 4 N / 2
CLC 640 ac x 1 ÷ 4 x 1 ÷ 4 x 1 ÷ 4 x 1 ÷ 2 = 5 ac
CL 640 X 1 ÷ 4 X 1 ÷ 4
X 1 ÷ 4 X 1 ÷ 2 = 5 5 acres

Using Surveying Land measurements

Measurement of distances and areas - Distances can be measured in a variety of ways. Accuracy
dictates the method used. Pacing is one method, but accuracy is usually only 97 to 98 percent.
Taping is more accurate and can easily be done with a 100-foot metal tape. The use of chaining pins
consisting of 11 pins is helpful in determining linear distances. The table in Figure 9.10 is helpful
with measurement calculations:

1 rod = 5 1/2 yards or 16 1/2 feet or 25 links

4 rods = 66 feet or 1 chain

1 link = 7.92 inches

160 square rods = 1 acre

640 acres = 1 square mile

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