the length and breadth of a rectangular field are in the ratio of 7:5 . if its perimeter is 480 meter find its dimension
Answers
Answered by
7
let the length and breadth be 7x and 5x
then
perimeter=2(l+b)
480m=2(7x+5x)
480=24x
x=480/24
x=20
therefore, length=7×20=140m
breadth=5×20=100m
then
perimeter=2(l+b)
480m=2(7x+5x)
480=24x
x=480/24
x=20
therefore, length=7×20=140m
breadth=5×20=100m
Answered by
1
2(7x +5x)= 480 =20m, 7x=7*20=140m ,5x= 5*20= 100m
Similar questions