Answer:
x= 14 meters
Explanation:
Given
length=x
width=4 meters
height=5 meters
SA= 292 meters
Formula for rectangular prism surface area:
SA=2(lw+lh+wh)
Substitute values and add like terms
292=2(4x+5x+4*5)
292=2(9x+20)
Distribute and solve for x
292=19x+20
292-20=19x
272=19x
x=272/19
x = 14 meters