Question

the length of a rectangle is 3 times its width. If the perimeter of a rectangle is 144 find the sides of the rectangle .
please answer this question​

Answer 1

Answer:

let length be 3x and width be x.

2(3x+x)=144

2 x 4x = 144

8x = 144

x= 144 / 8

 =18

Therefore ,

w=18

l=54

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Answer 2

Answer:

Step-by-step explanation:

Length= x

Width=3x

Perimeter of rectangle =2(length+width)

Therefore ,

144=2(x+3x)

    =2×4x

    =8x

X=144÷8

 =18

Length =x=18

Width=3x=3×18=54