Question

I will give you BRAINLIEST

Answer 1

Answer:

The answer is the option C

$4\ ft$

Step-by-step explanation:

we know that

The perimeter of a rectangle is equal to

$P=2b+2h$

where

b is the base side of the rectangle

h is the height of the rectangle

In this problem we have that

$b=8\ ft, h=4\ ft,P=24\ ft$

The length of side x is equal to the height  of rectangle

so

$x=h=4\ ft$

Answer 2

the answer is C 4 feet because it a rectangle opposite side are congruent.