Question

The length of a rectangle is four times its width.

Answer 1

• $\sf{length=28~ft }$
• $\sf{width=7~ft}$

Step-by-step explanation:

The length of a rectangle is four times its width.

If the perimeter of the rectangle is 70 ft,

let the width =x

length =4width=4x

According to the question,

the perimeter of the rectangle is 70 ft

• 2(length+width)=perimeter
• 2(4x+x)=70
• 2(5x)=70
• 10x=70
• x=70/10
• x=7

Therefore:-

width =x=7ft

length =4x=4×7=28ft

Answer 2

Let width be x

• length=4x

ATQ

$\\ \sf\longmapsto 2(x+4x)=70$

$\\ \sf\longmapsto 5x=35$

$\\ \sf\longmapsto x=7$

• Width=7ft
• Length=7(4)=28ft