Question

the lenth of a rectangular hallway is 3 times its breadth if the perimeter of the hallway 60 m find its lenth and breadth.​

Answer 1

Step-by-step explanation:

let breadth be x

length will be 3x

perimeter of rectangle=2(l+b)

=2(x+3x)= 2x+6x=8x

but perimeter= 60 m

60= 8x

x=60/8

x = 7.5 m

Breadth=7.5m

Length= 3*7.5=22.5m