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Studentka2010 [4]
3 years ago
15

The length of a rectangle is four times its width. if the area of the rectangle is 400 yd2 , find its perimeter.

Mathematics
2 answers:
Rus_ich [418]3 years ago
5 0
I don’t know for sure but the length is 40 and the width is 10.
hram777 [196]3 years ago
3 0
Let W = width, and L = length.

L = 4W

A = LW

400 = (4W)(W)

400 = 4w^2

4W^2 = 400

W^2 = 100

W = 10

The width is 10 yd, and the length is 40 yd.
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Ne4ueva [31]

Answer:

26π

Step-by-step explanation:

Hmm... This one is a little hard to understand because of the LaTeX.

Any way, way back to the question.  A useful piece of information:

<u>The formula for finding the circumference of a circle is 2πr or π · d :</u>

We first need to find out what x is.

Since 2 times the radius is the diameter, we can set up our equation like this:

2(x + 6) = 3x + 5

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