What is the 3rd leg of the triangle when the other 2 legs are 5. It is and equilateral triangle.

5

Step-by-step explanation:

If it is equilateral then all the sides are equal

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

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3