payshencec21 payshencec21

28-05-2018
Mathematics

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Please help asap 35 pts

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trainboxcar20 trainboxcar20

28-05-2018

D. 6 meters. If you add 7 meters to that, it becomes 13 meters for all sides. 13^2=169m^2. So, 6 meters was the original length.

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Аноним Аноним

28-05-2018

Let original side length = x Then:-

(x + 7)^2 = 169

x + 7 = 13
x = 6 m

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