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  3. Each symbol (triangle, square, diamond and circle) in this table has a value

Each symbol (triangle, square, diamond and circle) in this table has a value

游客2023-10-14  30
问题     Each symbol (triangle, square, diamond and circle) in this table has a value. The total of these values in each row and column is written at the end of the corresponding row or column.
    Now write down the value of each symbol.
选项
答案 Triangle=-4.2，Square=11.5，Diamond=-1.8，Circle=6.6
解析 (通过设未知数解方程，可以得出四种几何图形所分别代表的数值。)
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