Question

The ratio of the length and breadth of a rectangular field is 3 : 1. Its area is m. What is the perimeter of the field?​

Answer 1

Answer:

Let the length and breadth of a rectangle be x,y respectively

Given Ratio of length and breadth of the rectangle is 3:1

⟹x:y=3:1⟹

y

x

​

=

1

3

​

⟹x=3y

Perimeter of a rectangle is 36 cm

⟹2(x+y)=36

⟹3y+y=18⟹y=

4

18

​

=4.5

⟹x=3y=3×4.5=13.5

The length and breadth of a rectangle is 4.5 cm,13.5 cm respectively

Step-by-step explanation:

Answer 2

$\huge\dag\mathbb\red{solution} \dag$

ratio - 3 : 1

let ,

Length : 3x

Breadth : x

$Area (m) = 3x \times x \\ m = 3x^2$