Mathematics, 05.10.2019 14:30 adrianna74

The perimeter of a trapeziod is 39a - 7. three sides have the following lengths: 9a, 5a + 1, and 17a - 6. what is the length of the fourth side?

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The perimeter of a trapeziod is 39a - 7. three sides have the following lengths: 9a, 5a + 1, and 17...