surveying

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Sheet1

HOMEWORK 4 Solution Internal Angles
A 110 0 15 '
B 115 0 30 '
C 110 0 10 '
D 118 0 0 '
E 125 0 5 '
F 130 0 0 '
Direction Azimuth Reverse Azimuth Internal Angle Azimuth of Next Direction
AB 80 0 0 ' 260 0 0 ' 117 0 20 ' 144 0 30 '
BC 144 0 30 ' 324 0 30 ' 112 0 0 ' 212 0 30 '
CD 214 0 20 ' 34 0 20 ' 119 0 50 ' 275 0 0 '
DE 276 0 20 ' 96 0 20 ' 196 0 55 ' 331 0 15 '
EF 331 0 15 ' 151 0 15 ' 131 0 50 ' 20 0 -35 '
FA 21 0 15 ' 201 0 15 ' 112 0 5 ' 89 0 10 '
Sum of Internal angles
709°
Misclosure=720-709
11°
For 2a COURSE AZIMUTH DISTANCE LATITUDE DEPARTURE
AB 71 ° 11 ‘ 164.95 53.2 156.13
BC 149 ° 0 ‘ 88.41 -75.78 45.53
CD 224 ° 18 ‘ 121.69 -87.09 -84.99
DE 291 ° 13 ‘ 115.89 41.94 -108.03
EA 352 ° 39 ‘ 68.42 67.86 -8.75
M ISCLOSURE 0.13 -0.11
For 2b ERROR OF MISCLOSURE= 0.17
PRECISION RATIO= 0.17/559.36
0.0000303918

Sheet2

Course Distance Azimuth Latitudes Departures
AB 164.95' N71°11'E 53.2 156.13
BC 88.41' S149°00'E -71.78 45.53
CD 121.69' S224°18'W -87.27 -84.81
DE 115.89' N291°13'W 54.97 -108.03
EA 68.42' N352°39'W 67.86 -8.75 16.98 559.36
Perimeter 559.36' 16.98 0.07
Error=sqrt(16.98sqd+0.07sqd)=16.98'
Traverse survey does not close
Precision 0.0303561213

Sheet3