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Answerfirst you have to make it a square by subtracting 2cms from the length and adding 2cms to the width. That will make it equal to 12cm. The area for the rectangle was 140cm then it increased by 4 because 12cm * 12cm is 144cm. so x = 2 and the area increases by four.
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Q: 1 A rectangle is 14 cm long and 10 cm wide If the length is reduced by x cms and its width is increased also by x cms so as to make it a square then its area changes by?
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How do you know that the perimeter of a rectangle is directly proportional to its length?

The perimeter of a rectangle is given by the formula P = 2(l + w). It is clear that as the length, l, increases, the perimeter, P, increases, as well. We say, therefore, that P is directly proportional to l. If l is the length and b is width of a rectangle then, the perimeter P of the rectangle is 2(l + b) units. P = 2(l + b) P = 2l + 2b If have b as a constant then, 2b will be a constant. Now l is the varying quantity. Say 2b = K P = 2l +K Perimeter changes if the length of the rectangle changes. In particular, if the length increases the perimeter of the rectangle increases. Similarly, if the length decreases the perimeter also decreases. So, the perimeter is directly proportional to the length of the rectangle. Source: www.icoachmath.com In the most simplest explanation, the sum of both lengths, and both widths of the rectangle, IS the perimeter. So obviously the perimeter is directly proportionate to its length (and its width).


How do you get the length of a rectangle corner to corner?

This length (diagonal) = sq.rt ( l2 + b2 ) where 'l' is length of the rectangle and 'b' is the breadth of the rectangle.


Where is the length of a rectangle?

The term "length" is usually used for the rectangle's longest side.


What is the length of rectangle is 8 in more than its width the perimeter of the rectangle is 24 in what are the width and length of the rectangle?

10x2


How many square centimeters does the area increase if the length and width of a rectangle with a perimeter of 62 are each increased by 2 centimeters how do you solve this?

66

Related questions

The area of a rectangular region is 288m² if the length of the rectangle is increased by 2m the area of the rectangle is increased by 32m² what is the length in meters of the origninal rectangle?

32m2 = 2m x 16m(width)Length(a) x width (16m) = 288m2288m2 / 16m = 18m


The width of a rectangle is one half its length The perimeter of the rectangle is 54cm What are the width and length of the rectangle?

The length of the rectangle is 18cm. The width of the rectangle is 9cm.


Where is the length in the rectangle?

The length is the longest side in the rectangle.


If the length of a rectangle is 36 inches what is the width?

if the length is 36 on a rectangle then what is the width of the rectangle


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

The perimeter of a rectangle is given by the formula P = 2(l + w). It is clear that as the length, l, increases, the perimeter, P, increases, as well. We say, therefore, that P is directly proportional to l. If l is the length and b is width of a rectangle then, the perimeter P of the rectangle is 2(l + b) units. P = 2(l + b) P = 2l + 2b If have b as a constant then, 2b will be a constant. Now l is the varying quantity. Say 2b = K P = 2l +K Perimeter changes if the length of the rectangle changes. In particular, if the length increases the perimeter of the rectangle increases. Similarly, if the length decreases the perimeter also decreases. So, the perimeter is directly proportional to the length of the rectangle. Source: www.icoachmath.com In the most simplest explanation, the sum of both lengths, and both widths of the rectangle, IS the perimeter. So obviously the perimeter is directly proportionate to its length (and its width).


Width and the length of a rectangle?

The width and length of a rectangle will vary depending on the size of the rectangle. The width is the shortest side of the rectangle while the length is the longest side.


Why Did the Sore Tooth Take Up So Much Space?

It was an acher


How do you get the length of a rectangle corner to corner?

This length (diagonal) = sq.rt ( l2 + b2 ) where 'l' is length of the rectangle and 'b' is the breadth of the rectangle.


What is the formula in finding the reduced size wire if the resistivity is increased?

L1-L0=(RESISTANCE*AREA)/RESISTIVITY where L1=INIIAL LENGTH and L2=FINAL LENGTH


Formula for finding the area of a rectangle?

A = lw Area of a rectangle = length times width


The width of a rectangle is one half its length the perimeter of the rectangle is 54 cm what are the width and length of the rectangle?

width=9 length=18


What is the length of a rectangle that its perimeter is 30?

The perimeter of a rectangle is not sufficient to determine its length.