Question

The perimeter of a rectangular field is 360m and its breath is 75m. Find its length

Answer 1

perimeter=360m
breadth=74m
now,
2(l+b)=360
l+b=180
b=75
l+75=180
l=180-75
=105m

Answer 2

Hey mate ...
========

Perimeter of a rectangular field = 360 m

Breadth = 75 m

Length = ?

We know,

Perimeter of a rectangle = 2 ( L + b )......(1)

Therefore ,

Perimeter of a rectangular field = 360 m

From (1) we have ,

2 ( L+ b ) = 360

=> 2 ( L + 75 ) = 360 [ Given ]

=> 2 L + 150 = 360

=> 2 L = 360 - 150

=> 2 L = 210

=> L = 105

Required length = 105 m

^_^