Math, asked by ckerketta1968, 5 months ago

1 point
9. The length and breadth of a
rectangle are in the ratio 3:1. If
the perimeter of the rectangle is
72 m., then the length of the
rectangle is
9 m
O 18 m
0 27m
36 m​

Answers

Answered by devansh192
0
  • let and breadth be
  • x and 3x
  • perimeter of rectangle 2(l+b)=154
  • 2(3x+x)=154
  • 8x=72
  • x=9
  • lenth = 27
  • breadth = 9
Answered by shriyanammi
0

Answer:

Step-by-step explanation:

let common factor be x

length = 3x

breadth = 1x

perimeter of rectangle = 2 × ( l + b)

72 m = 2 × ( 3x + 1x )

72m = 2 × 4x

72m = 8x

x = 72

     8

x = 9m

Now ,

length = 3x = 3 × 9 = 27m

breadth = 9m

∴ length is 27m

Similar questions