Answer: 88cm^2
Step-by-step explanation:
To find the answer of a rectangular prism, use this formula:

For your prism, h = 4, l = 6, and w = 2.


Area is equal to 88 cm squared.
here u go! i hope this is correct :)
Answer:
4 units
Step-by-step explanation:
The volume of a square pyramid is (a²)*h/3
256=a²*12/3
256=a²*4
256/4=a²
64=a²
a=8
Now we know that the square is 8 by 8.
The volume of a square prism is a²h
256=64h
256/64=h
h=4
Also, a square pyramid is 1/3 the volume of a square prism.
12÷3=4