Answer :
Answer:
The length is 15 and the width is 5
Step-by-step explanation:
Let the breadth be x cm then its length be 3x.
Perimeter of the rectangle = 2 (x+3x)
40=2(x+3x)
40=8x
x=5
breadth = 5
length = (5×3) = 15
Answer:
The length is 15 and the width is 5
Step-by-step explanation:
Let the breadth be x cm then its length be 3x.
Perimeter of the rectangle = 2 (x+3x)
40=2(x+3x)
40=8x
x=5
breadth = 5
length = (5×3) = 15