Answer:
the answer is 3 I think but am not sure of the workings
Here we go !!
Since it's a regular pentagon, all it's sides are equal so let's solve for x






now let's find the measure of each side, i.e





perimeter = 5 × side length ( for a regular pentagon )


I think it's 3 feet
Hope this helps
Answer:
y = 7
Step-by-step explanation:
The diagonals of a rectangle are congruent and bisect each other, then
AC = BD , that is
AE + EC = BD [ AE = EC = 6y ]
6y + 6y = 84
12y = 84 ( divide both sides by 12 )
y = 7