如图3-1,已知A(100m,100m)、B(200m,200m),方位角α0=

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问题 如图3-1,已知A(100m,100m)、B(200m,200m),方位角α0=45°。测量A点到P的水平距离D=38m,观测水平角β=52°。由极坐标法计算界址点P的坐标,其结果是(  )。A.(126.87m,126.87m)B.(123.40m,129.94m)C.(95.37m,137.73m)D.(195.37m,237.72m)

选项 A.(126.87m,126.87m)
B.(123.40m,129.94m)
C.(95.37m,137.73m)
D.(195.37m,237.72m)

答案 C

解析 根据界址点坐标的计算公式计算如下:
XP=XA+D·cos(α0+β)=95.37m;YP=YA+D·sin(αo+β)=137.73m。
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