Question

15. The length of a rectangle is three times its width and its perimeter is 32 m. Find the length of the
rectangle.​

Answer 1

Answer:

32÷4 = 8

3l + l = 32

4l = 32

l=8

Answer 2

Answer:

Let the length of the rectangle be x 

 Breadth  = 3x

Perimeter = 56 m 

2(l+b) = 56 m 

l+b = 28 m 

x+3x = 28 m 

4x = 80 m 

x = 21 m 

length = 21 m Breadth = 7 m