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Well, that's not always the case; this is only fact when dealing with a rectangle. You see, when you have length l you have the basic foundation of said shape. Then, by multiplying by width w you are basically copying the length by w amount of times. Just picture it as a grid; it helps.

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Q: Why does length X width equal area?
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Is length x width area?

my idea is that to find the area of a 2 dimensional figure you have to multiply length *width which equal the area except a triangle and some other figure


How do you calculate the top dimensions of a rectangle if you know its perimeter and bottom area?

Important to note are these formulae: Perimeter_of_rectangle = 2 x (length + width) Area_of_rectangle = length x width So if the perimeter and area are known, then: 2 x (length + width) = perimeter => length + width = perimeter / 2 => length = perimeter / 2 - width length x width = area => (perimeter / 2 - width) x width = area (substituting for length given above) => perimeter / 2 x width - width2 = area => width2 - perimeter / 2 x width + area = 0 which is a quadratic and can be solved either by factorization or by using the formula: width = (perimeter / 2 +/- sqrt(perimeter2 / 4 - 4 x area)) / 2 = (perimeter +/- sqrt(perimeter2 - 16 x area)) / 4 This will provide two values for the width. However, each of these values is the length for the other, so the larger value is the length and the smaller value is the width. Sometimes only 1 value will be found for the width above. In this case, the rectangle is actually a square which means that the length and width are both the same. Examples: 1. perimeter = 6, area = 2 width2 - perimeter / 2 x width + area = 0 => width2 - 6 / 2 x width + 2 = 0 => width2 - 3 x width + 2 = 0 => (width - 2) x (width - 1) = 0 => width = 2 or 1. So the length is 2 and the width is 1. 2. perimeter = 12, area = 9 width2 - perimeter / 2 x width + area = 0 => width2 - 12 / 2 x width + 9 = 0 => width2 - 6 x width + 9 = 0 => (width - 3)2 = 0 => width = 3 So the rectangle is a square with both length and width of 3.


How do you figure out the area of a rectangle?

Area = length x width


How do you find the length of a rectangle given the width and area?

the area of a rectangle = length x widthwe can rearrange this to give uslength of a rectangle = area/ width


What is the expression to find the area of rectangle?

Area=Length X Width