土木工程测量学教程（下）教案3-49.推算三角网各边长度从已知边AB起，应用正弦定理依次计算三角形角角度平差值边边长（m）305240.78BD467.884142 16 38.34AD613.3042bAB106 50±40.87872.562CD4057.88724.96532b205822.89BD(467.8841)BC1252039.241066.271923± 45±15.66AD613.3042rCDh282604.45(724.9653)1274839.89AC1202.862910.计算各点坐标（按闭合导线计算）点右角方位角边长AxAy+J号5000500.00032 12 36.00872.5620738.2748465.096475 57 36.221238.275965.096B136 14 59 781066.2719-770.2356737.3418c20 58 22.891702.438468.0392951636.89724.9653309.5555655.5533D232 11 20.11777.5951064.885243 05 16.78613.3042-277.5947-546.8850A30 52 40.78500.000500.00032 12 36.00B0.0000.0002360 00 00.00