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Sagot :
step by explaining :
A=wl
P=2(l+w)
Solving forA
A=Pl
2﹣l2=126·5
2﹣52=290m²
answer : 290m²
The area of the rectangle is 782 meter square.
What is an rectangle?
A rectangle is a closed 2-D shape, having 4 sides, 4 corners, and 4 right angles (90°).The opposite sides of a rectangle are equal and parallel.
The area of rectangle is given by length*width and the perimeter of a rectangle is given by 2(length+width).
What will be the area of rectangle?
Let x be the width of the rectangle.
As the length is 5 meter less than three times its width so the length is 3x-5.
The given perimeter is 126 meters so, the equation formed by using the formula of perimeter will be 2(3x-5+x)=126.
on solving the equation we will get x=17.
So, the width of the rectangle is 17 meter.
The length of the rectangle will be 3*17-5=46
The area of rectangle is product of length and width, 17*46=782 meter square.
Therefore, the area of the rectangle is 782 meter square.
Learn more: https://brainly.in/question/7915928
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