Explanation:
A_____________B
I l
l l
C_____________D
Here, Perimeter = 4x + 8xy + 6y
and it's length = 4x + 8y
then breadth = ?
Now, 2( l + b) = P
=> 2 ( 4x + 8y + b) = 4x + 8xy + 6y
=>4x + 8y + b = 2x + 4xy + 3y
=> b = 4x + 8xy + 6y - 4x -8y
=> b = 8xy -2y
=> b = 2y(4x -1)
So,the breadth is 2y(4x -1)