| 2.56 | 5.78 |
| 3.57 | 7.34 |
| 6.78 | 9.01 |
| + |
| -0.28 | -0.26 | 0.39 |
| 0.20 | 0.20 | -0.18 |





tan
|
Δx≠0 | |||
| 0 | Δy=0 |

| 2 |
| 1 |
| 2 |
| 1 |
| 測点名 | x
|
y
|
測点名 | x
|
y
|
測線方位角 | 点間距離 | ||||
| T123 | 123.897 | 67.900 | T56 | 166.000 | 98.897 | 0.635 | 52.283 | ||||
| T166 | 144.900 | 87.765 | P156 | 199.345 | 107.900 | 0.354 | 58.049 | ||||
| P77 | 166.109 | 99.543 | T23 | 200.876 | 110.786 | 0.313 | 36.540 |