CAD中多边形面积怎么量

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SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1126902,1086582,1080130,1053802,1082352,1121904,1107337,1067395,1103386,1080557,1092321,1111322,1080299,1109699,1121872,1129863,1061564,1096402,1122124,1066478,1115627,1083965,1071759,1092163,1125490,1123291,1081897,1131261,1096711,1128887) ORDER BY field (ArticleID,1126902,1086582,1080130,1053802,1082352,1121904,1107337,1067395,1103386,1080557,1092321,1111322,1080299,1109699,1121872,1129863,1061564,1096402,1122124,1066478,1115627,1083965,1071759,1092163,1125490,1123291,1081897,1131261,1096711,1128887)