Mathematics, 17.04.2020 02:56 bremarie102013
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
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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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