任意一个四边形的内角和是多少度

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SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1303489,980827,1094977,1044382,1082309,1041729,1275494,1057595,1109304,1125415,1049542,1043756,1127849,1128185,1060391,1126892,1047093,1275870,1132481,1125166,1127992,1061534,1127783,1102156,2951980,1127587,1104595,1099121,1070000,1073772) ORDER BY field (ArticleID,1303489,980827,1094977,1044382,1082309,1041729,1275494,1057595,1109304,1125415,1049542,1043756,1127849,1128185,1060391,1126892,1047093,1275870,1132481,1125166,1127992,1061534,1127783,1102156,2951980,1127587,1104595,1099121,1070000,1073772)