There is a photo attachedi know its not a

cos 2x=2 cos ^2 x-1

cos x=sqrt(1+cos 2 x)/2

x=67.5

cos 67.5=sqrt(1+ cos 135)/2

=sqrt(1-cos45)/2

=sqrt(1-sqrt(2)/2)/2

=sqrt(2-sqrt2)/4

idk

step-by-step explanation:

use that smart brain

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