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It is impossible to calculate the area of a rectangle from its perimeter if no other dimension is known. The area of a rectangle is the product of its length and width, and the perimeter is twice the sum of its length and width.

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โˆ™ 2011-01-21 00:32:19
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Q: What is the area of a rectangle that its perimeter is 39?
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What is the greatest perimeter of a rectangle with an area of 39 feet?

It's greatest possible perimeter: 1+39+1+39 = 80 feet


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What is the greatest perimeter of a rectangle with an area of 39 square feet?

Area 39*1=39 perimeter 39+39+1+1=80 * * * * * Wrong! What about 0.1 * 390 which has an area of 0.1*390 = 39, as required but a perimeter of 0.0 + 0.1 + 390 + 390 = 780.2 Or 0.01 * 3900 with a perimeter of 7800.02 or 0.001 * 39000 with a perimeter of 78000.002 In fact, unless the question specifies that the sides MUST have integer measures, there is no limit. And the question does not make that requirement.


The length of a rectangle is 5 more then the width Find the perimeter and the area of the rectangle?

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What is the effect on the perimeter of a rectangle if the dimension are doubled what is the effect on its area?

Let's take a look at this problem.Rectangle Perimeter = 2(l + w)Rectangle Perimeter =? 2(2l + 2w)Rectangle Perimeter =? (2)(2)(l + w)2(Rectangle Perimeter) = 2[2(l + w)]Thus, we can say that the perimeter of a rectangle is doubled when its dimensions are doubled.Rectangle Area = lwRectangle Area =? (2l)(2w)Rectangle Area =? 4lw4(Rectangle Area) = 4lwThus, we can say that the area of a rectangle is quadruplicated when its dimensions are doubled.


Can the perimeter or area of a rectangle ever be an irrational number?

Yes, the perimeter or area of a rectangle can be an irrational number. Thanks


Is The area of a rectangle always greater than the perimeter?

No,for example, a 1x2 rectangle has an area of 2 but a perimeter of 6


What is perimeter and area of a rectangle?

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