FRP 244 Land Navigation

SLOPE = VERTICAL DISTANCE/HORIZONTAL DISTANCE X 100

             = RISE/RUN X 100 =%

LINEAR UNIT MEASUREMENTS

12 inches = 1 foot

3 feet = 1 yard

5280 feet = 1 mile

66 feet = 1 chain

80 chains = 1 mile

AREA UNIT MEASUREMENTS

1 acre = 208 feet x 208 feet

1 acre = 43560 sq feet

1 acre = 10 sq chains

640 acres = 1 sq mile

1 section = 1 sq mile

1/2 section = 320 acres

1/4 section = 160 acres

1 hectare = 2.4 acres

GEOGRAPHIC LOCATION SYSTEMS CONVERSIONS

60 seconds (60") = 1 minute (1')

60 minutes (60') = 1 degree (1°)

7.5 minutes = 1/8 of 60 minutes = 1/8 of a degree

Degrees minutes seconds to degrees decimal minutes:

48°20'30" to 48°20.5'

Degrees decimal minutes to degrees minutes seconds:

48°20.5' to 48°20'30"