单项选择题
如图3-2所示,A、B、P1三点在一条直线上,A、B两点的坐标分别为(10m,20m)、 (20m,30m),实地利用测距仪或钢尺丈量A点到P1点的距离D1为50m,A点到B点的距离为100m。则由截距法可得P1点坐标为()。
A.(10m,15m) B.(15m,25m) C.(20m,30m) D.(25m,35m)
A.(126.87m,126.87m) B.(123.40m,129.94m) C.(95.37m,137.73m) D.(195.37m,237.72m)