土地测量-2012蓝桥杯试题

<p> <img alt="" src="http://tjau.acmclub.com/attached/image/20141119/20141119144701_64618.jpg" /> </p> <p> &nbsp; <p> 各条边长数据如下： </p> <p> &nbsp; &nbsp;AB = 52.1 </p> <p> &nbsp; &nbsp;BC = 57.2 </p> <p> &nbsp; &nbsp;CD = 43.5 </p> <p> &nbsp; &nbsp;DE = 51.9 </p> <p> &nbsp; &nbsp;EA = 33.4 </p> <p> &nbsp; &nbsp;EB = 68.2 </p> <p> &nbsp; &nbsp;EC = 71.9 </p> <p> &nbsp; &nbsp;根据这些数据求五边形地块的面积并输出。四舍五入到小数后两位。 </p> <p> &nbsp; （比赛原题为结果填空题）&nbsp; </p> <p> <br /> </p> </p>