It’s question 126. does anyone know how to solve the rest of it or if i messed up so far?

Step-by-step explanation:

The last line of your solution is incorrect.  You cannot divide that '6' by '2' and not also divide '-3√2' by '2.'

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet