SOLUTION: the length of a rectangle is 5cm longer than its width the area is 66 cm square find the perimeter of this rectangle
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Question 944418: the length of a rectangle is 5cm longer than its width the area is 66 cm square find the perimeter of this rectangle Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! the length of a rectangle is 5cm longer than its width the area is 66 cm square find the perimeter of this rectangle
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let x=width of rectangle
x+5=length of rectangle
length*width=area
x(x+5)=66
x^2+5x-66=0
(x+11)(x-6)=0
x=6
x+5=11
width of rectangle=6
length of rectangle=11
2*(width+length)=perimeter
2(6+11)=34
perimeter of rectangle=34 cm
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