Answer:
The value of x is 18 ft
Step-by-step explanation:
The dimension of the box,
Length, l = x ft
Breadth, b = 4 ft
Height, h = 6 ft
<em>The shape of box is cuboid. The volume of cuboid is lbh </em>
<em>Volume of cuboid (Box) = length × breadth × height </em>
Volume of box = 432 ft³




hence, the value of x is 18 ft