Unnumbered pageScan 8 of 63
From East Station ∠ s at VII with line VII-13
| ∠ | distance | sine | \perp at | pt. |
| 0.38 | 121.50 | .0111 | 1.35 | 15 |
| 2.27 | 110.50 | .0427 | 4.72 | 16 |
| 3.53 | 90. | .0677 | 6.09 | 17 |
| 2.17 | 82. | .0398 | 3.26 | 18 |
| 2.28 | 69.50 | .0430 | 2.99 | 19 |
| all to north of this line | ||||
| 5.11 | 51 | .0903 | 4.60 | 20 |
| below (to S) this line |
Right page
To focate pt 13 relativ to G & H
Drawing: geometric diagram; labels: 13, 8, 4, G, H, 62, 145.55, 164.25, 104.90, 84, 28.50, 113.35, 122.50, 234.50
△ 8-4-G: ∠ 4 = 130.54 4-8 = 84m 4-G = 28.50m \therefore ∠ G = 37-15 ∠ 8 = 11.51 \therefore 8-G = 104.90m
△ 8-4-13 : ∠ 13 = 5-22 13-8 = 62m 8-4 = 84m \therefore ∠ 4 = 3.57-30 ∠ 8 = 170-40-30 \therefore 13-4 = 145.55m
∠ 13-8-G = 170.40-30 - 11-51.0 = 158.49.30 ∠ 13-4-G = 130-54 - 3.57-30 = 126.56.30 ∠ 4-13-G = 13-20 1/4 - 5.22 = 7.58 1/4 △ 13-8-G: ∠ 4-G-13 = 37.15 + 7.50 1/4 = 45. 5 1/4 ∠ 8 = 158.49 1/2 13-8 = 62 8-G = 104.90 therefore ∠ 13 = 13.20 14 + (13/24) ∠ G = 7.50 1/4 - (1/24) 13-G = 164.25m
△ 13-4-G: ∠ 4 = 126.56 1/2 ∠ 13 = 7.58 1/4 ∠ G = 45. 5 1/4 4-G = 28.50m \therefore 13-4 = 145.55m \therefore 13-G = 164.25
41.34△ 13-4-H: ∠ 4 = 129.34 1/2 (8-4-H: 125-37 + 8-4-13 : 3.57 1/2) 13-4 = 145.55 4-H = 113.35 therefore ∠ H = 28.34 34 \therefore 13-H = 234.50 m. ∠ 13 = 21-50 3/4
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