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
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
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
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