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問一條中二英數!!!!!

發問:

Cynthia wants to design a rectangular playground of 616 square metres and she also wants to have a fence built around it. However, she only has enough fence materials for a playground of 100 metres in perimetre. What should be the dimensions of the playground? Answer:Length = ??metresWidth = ?? metres 更新: Length = 22m Width = 28m answer is wrong!!!! thx 更新 2: answer is: Length = 28m Width = 22m

最佳解答:

Perimeter of Rectangular : (L + W) x 2 (L + W) x 2 = 100 L + W = 50 Area of Rectangular : L x W L x W = 616m2 Find the Common Factor of 616: 1 ，616 2 ，308 4，154 7，88 8，77 11，56 14，44 22，28
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