SOLUTION: If the area of a rectangle is 3.41 squared km and the width is 800 m. What is the length?

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Question 572048: If the area of a rectangle is 3.41 squared km and the width is 800 m. What is the length?
Found 2 solutions by Theo, ikleyn:
Answer by Theo(13342) About Me  (Show Source):
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area = 3.41 square km
width is 800 m.
1 km = 1000m
m = 1 km / 1000
800 m = 800 * 1 km / 1000 = .8km
area = 3.41 square km.
width is .8 km.
area = length * width
3.41 square km = length * .8 km.
divide both sides of this equation by .8 km to get:
3.41 square km / .8 km = length
this makes length equal to 4.265 km.
.8 km * 4.265 km = 3.41 square km so the number check out ok.

Answer by ikleyn(53431) About Me  (Show Source):
You can put this solution on YOUR website!
.

Here is my correction to the  @Theo' solution:


The width of a rectangle is its area divide by the length.

So, the correct calculation is   w = 3.41%2F0.8 = 4.2625 km,

which is not  4.265 km,  as in the  @Theo solution.