Mathematics, 16.11.2020 22:00 lalkjlkeu9709
the perimeter of triangle DEF is 81 units. The length of side DE is twice the length of side EF, and the length of side DF is 4 units less than the length of side DE. What will be the length of side EF?
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the perimeter of triangle DEF is 81 units. The length of side DE is twice the length of side EF, and...
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