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The previous answer (below) is seriously flawed.
The area of a rectangle is L*W, NOT 2L + 2W, which is its perimeter!
So, if you triple [just] the length, L must be replaced by 3L
W remains unaffected and the new area is 3L*W or 3LW which is 3 times the original area.
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The area of a rectangle is 2Length + 2Width (1)
If you triple the length your length then this happens... 2(3*Length) + 2Width (2)
Lets just assign numbers to the length and width for each equations
Length=5
Width=3
2(5) + 2(3) = 16 (1)
2(15) + 2(3)= 36 (2)
Lets do a different set of numbers to compare
Length=7
Width=2
2(7) + 2(2) = 18 (1)
2(21) + 2(2) = 46 (2)
Obviously these ratios are different. So it depends on what your initial length is before you triple it. But in the first assigned numbers the area went up around 2.25 times greater. In the second assigned numbers the area increased by a factor of 2.55
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How do you figure out the area of a rectangle?
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Formula for finding the area of a rectangle?
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Divide the area by the length of the rectangle
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Area of rectangle-?
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The length of a rectangle is twice its width. If the perimeter of the rectangle is , find its area.
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For a rectangle or square, Area = Length * Width So Length = Area / Width.
How do you find the width of a rectangle if you know its length and area?
Area of rectangle divided by its length = width of rectangle
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Length times width gives the area of a rectangle. The rectangle with a length of 38 and a width of 28 has an area of 1064 square units.
Surface area of rectangle?
Area of a rectangle = length x width
What does area of a rectangle mean?
Area of a square/rectangle=its length × its width
