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Degrees Minutes & Seconds. 360 ° in a circle 1° = 1/360 of a circle 1’ = 1/60 of one degree 1” = 1/60 of one minute 1° = 60 minutes or 3600 seconds. Adding DMS. Examples 25° 22’ 15” + 60° 15’ 49” 85° 37’ 64” or 85° 38’ 04” 55° 55’ 43” + 67° 43’ 29”

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degrees minutes seconds
Degrees Minutes & Seconds

360° in a circle

1° = 1/360 of a circle

1’ = 1/60 of one degree

1” = 1/60 of one minute

1° = 60 minutes or 3600 seconds

adding dms
Adding DMS
  • Examples

25° 22’ 15”

+ 60° 15’ 49”

85° 37’ 64” or 85° 38’ 04”

55° 55’ 43”

+ 67° 43’ 29”

122° 98’ 72” or 123° 39’ 12”

subtracting dms
Subtracting DMS
  • Examples

125° 43’ 32”

- 44° 11’ 22”

81° 32’ 10”

235° 10’ 37” or 234° 69’ 97”

- 140° 59’ 59” - 140° 59’ 59”

94° 10’ 38”

converting dms to decimal
Converting DMS to Decimal

94° 30’ 30”

30”/60 = .5’ add to minutes

30.5/60 = .5083°

94° 30’ 30” = 94.5083°

your turn
Your Turn

55° 23’45” + 120° 45’ 33” =

44°44’44” + 25°55’23” =

132°34’ 55” - 68°49’52” =

43°35’48” - 22°56’13” =

176°09’18”

70°40’07”

63°45’03”

20°39’35”

more fun
More Fun

176°09’18”

70°40’07”

63°45’03”

+ 20°39’35”

331°14’03”

Now convert 331°14’03” to Decimal Degrees

331.2342°