SOLUTION: if area of a rectangular field is 28900 sq meter and its lenth is twice as long as its width.what will be the lenght of it's sides?

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Question 480646: if area of a rectangular field is 28900 sq meter and its lenth is twice as long as its width.what will be the lenght of it's sides?
Found 2 solutions by Anthea Lawn, Alan3354:
Answer by Anthea Lawn(22) About Me  (Show Source):
You can put this solution on YOUR website!
Call the width of the field w (for width)
The length is twice the width, so the length is 2w
The area of the field is the length times the width = 2w X w = 2w%5E2
So 2w%5E2 = 28900
Divide both sides by 2
w%5E2 = 14450
Take the square root of both sides :
The width is 120.21 and the length is 240.42

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
it's = it is
28900 = 170^2, I thought that would be relevant, but it isn't.