SOLUTION: Area of rectangle is 217800 square meter,its length twice of width,find the length?

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Question 1029594: Area of rectangle is 217800 square meter,its length twice of width,find the length?
Answer by ikleyn(52784) About Me  (Show Source):
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Area of rectangle is 217800 square meter,its length twice of width,find the length?
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L*W = 217800,

L = 2W,

Hence,

(2W)*W = 217800,

2%2AW%5E2 = 217800,

W%5E2%7D+=+%7B%7B%7B217800%2F2 = 108900,

W = sqrt%28108900%29 = 330 m.

Then L = 2W = 660 m.