Answer:
384 sq ft.
Step-by-step explanation:
Given:
L = 12 ft
W = 9 ft
H = 4 ft
Required:
Surface area of the rectangular prism
SOLUTION:
Surface Area of rectangular prism = 2(LW + LH + WH)
SA = 2(12*9 + 12*4 + 9*4)
SA = 2(108 + 48 + 36)
SA = 2(192)
SA = 384 ft²
