Answer:

I hope it will help you army

Step-by-step explanation:

Let the breadth of a rectangle = x m.

Thrice its breadth=3x m

Length of a rectangle= 3x-6 m

Perimeter of a rectangle = 2(l+b)

=2(3x−6+x)

=2(4x−6)

=8x−12

But we are given perimeter=148 m

8x−12=148

8x=148+12

8x=160

x=20 metres

Breadth=x= 20 metres

and Length=3x−6=3×20−6=60−6=54 metres.

Verified answer

here your answer

Given:

The length of a rectangle is 6 more than thrice its breadth.

To find:

what is perimeter of rectangle.

Solution:

Let the breadth of a rectangle = b units

Then the length of the rectangle= 6 more than thrice its breadth

=>Length=6+3b units Perimeter of a rectangle =2(1+b) units

=>P=2(6+3b+b)

=>P=2(6+3b+b)

=>P=12+8b

Therefore, Perimeter=(8b+12) units

Answer:

Perimeter of the rectangle=(8b+12) units

Used formula:

Perimeter of a rectangle=2(l+b) units

Where, I- ength of the rectangle

and, b- breadth of the rectangle

hope it will help you