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x=width

x+25=length

4x+50=130

4x=80

x=20

width is 20

length is 45

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โˆ™ 2008-10-19 20:25:36
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Q: The perimeter of a rectangle is 130m. The length of the rectangle is 25m more than the width. What are the lengths and widths of the rectangle?
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How do i find the perimeter of a rectangle if you know its length and its width?

Add up (two lengths) plus (two widths) and you have the perimeter.


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To find the perimeter of the rectangle you add up all the sides. There are two lengths and widths for every rectangle, so you know the length is 40 meters x 2 = 80 meters. Perimeter is the total length of all the sides so you just minus 120 from the two lengths which is 80. So the width is 40, divide 2 (2 widths) = 20 meters. Width = 20 meters OR if they're asking for widthS then it'll be 40 meters, but they're not.


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How do you know that the perimeter of a rectangle is directly proportional to its length?

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