Answer:
x=3
Step-by-step explanation:
the 20x(8+2) is just two times greater as its 200 instead of 100 which is the other answer
Answer:
The surface area is 78 unit square.
Step-by-step explanation:
Given : The surface area for a rectangular prism with a square base is
.
To find : What is the surface area if s=3 and h=5?
Solution :
The surface area for a rectangular prism with a square base is 
Substitute, s=3 and h=5




Therefore, The surface area is 78 unit square.