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L + W = P/2 = 72 feet

L = 3W so L = 3/4 x 72 = 54 feet

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Q: The length of a rectangle is three times its widthif the perimeter is equal to 144 feet what is the length of the rectangle?
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The length of a rectangle is equal to three times its width if the perimeter is equal to 168 feet what is the length of the rectangle?

63 feet


The length of a rectangle is three times its width If the perimeter of the rectangle is 486in2 what is its area?

the length is equal to 160,083


If you know the perimeter and lenght of a rectangle and want to find its width do you divide the perimeter by the length?

No. If you draw a rectangle there are four sides, the length of two of those sides are equal to the length, and the other two are equal to the width. Therefore: the perimeter, which is equal to all the sides added up, is equal to two times the length plus two times the width: or 2L+2W= Perimeter. If you know L and you know the perimeter you can solve it algebraically. the width equals the perimeter minus two times the length, all that divided by two, or W= (P-2L)/2 (when you do the algebra). you might be thinking about the area in which case if you knew the area and the length and you want to find the width you would divide the area by the length.


What is the area of a rectangle with a perimeter of 48 and a length of 5?

A rectangle with a perimeter of 48 and 1 side equal to 5 would have its other sides lengths of 5, 19, 19. Such a rectangle would have an area of 95 sq/m. Your question is somewhat strange, as the "length" of a rectangle generally refers to the longer side - in this case the length would be 19 and the width 5.


What is the perimeter of a rectangle length 45meters and width 10 meters?

A rectangle has two pairs of equal sides. So to calculate the perimeter, add two known sides and multiply by two. 45 + 10 = 55 55 x 2 = 110 Perimeter - 110 metres.

Related questions

What are the rectangles found by the greek that have the same perimeter and length?

No rectangle can have equal perimeter and length.


The length of a rectangle is equal to three times its width if the perimeter is equal to 40 feet what is the length of the rectangle?

15 feet.


The length of a rectangle is equal to three times its width if the perimeter is equal to 168 feet what is the length of the rectangle?

63 feet


The length of a rectangle is three times its width If the perimeter of the rectangle is 486in2 what is its area?

the length is equal to 160,083


What is the formula for the perimeter of a square and rectangle?

The perimeter of any rectangle is [ 2 x (length + width) ]. Since the length and width of a square are equal, the perimeter of a square is also [ 2 x (side + side) ] = (4 x side).


How do you calculate the dimensions of a rectangle if you know the perimeter and the length?

A rectangle by definition has two pairs of sides with equal length. Since perimeter equals the length of all the sides. The equation for the perimeter of a rectangle could be thought of as: 2L + 2W = P Where L represents the length of one side of the rectangle and W represents the length of the adjacent (next to) side of the rectangle. If you know the length of one side and the perimeter, plug those values in as L and P and then solve for W. That will give you L and W which are the dimensions of the rectangle.


What is the perimeter of a 7 x 45 rectangle?

Since by definition, a rectangle has two pairs of equal length sides, (2 * 7) + (2 * 45) will get the perimeter: 104.


What is the perimeter of rectangle with a length of 2 and a width of 4?

A rectangle has 2 pairs of equal sides, so it would be 2X2+2X4=12


What is the common perimeter of a rectangle and a trapezium?

These two plane figures do not have a common perimeter. As the opposite sides of a rectangle are of equal length then only the measurements of two adjacent sides are needed to calculate the perimeter. (Perimeter = 2A + 2B, where A and B are the lengths of adjacent sides) However, a trapezium does not necessarily have any of its sides of equal length and therefore all four sides have to be measured to determine the perimeter.


What is an expression for the perimeter of a rectangle that has a length which is seven times its width?

Perimeter = length + length + width + width Let "w" = width, then "7w" must equal the length (because it's 7 times the width) 7w + 7w + w + w = perimeter 16w = perimeter


How do find the perimeter of a rectangle?

the perimeter is the sum of the length of every side of the geometrical figure. In your case, since you have 4 sides two of which are equal, the perimeter would be 2*(a+b) where a and b are the length of two sides


If you know the perimeter and lenght of a rectangle and want to find its width do you divide the perimeter by the length?

No. If you draw a rectangle there are four sides, the length of two of those sides are equal to the length, and the other two are equal to the width. Therefore: the perimeter, which is equal to all the sides added up, is equal to two times the length plus two times the width: or 2L+2W= Perimeter. If you know L and you know the perimeter you can solve it algebraically. the width equals the perimeter minus two times the length, all that divided by two, or W= (P-2L)/2 (when you do the algebra). you might be thinking about the area in which case if you knew the area and the length and you want to find the width you would divide the area by the length.