would really appreciate it if anyone could help me, I keep getting my calculations wrong and the website keeps saying my answer is wrong please help

In an isosceles triangle, the two legs have the same length. So if one leg is 2x-5, the other leg is also 2x-5 .let the other side be x.

we know,The perimeter is the sum of the three sides of the triangle:

x+2x-5+2x-5=20° [ given]

x+2x+2x-10=20

5x=20+10

5x=30

x=30/5

x=6.

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