Do you multiply the area
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That's the area of all six sides added together.
Calculate the area of each individual surface using the formula "length x width" and then add the six results to arrive at the final answer.
If you have the dimensions A, B and C, then the surface area is 2*(AB + BC + CA) square units
L*W*2 + L*H*2 + W*H*2= surface area
L= Length
W= Width
H= Height
*=Times
The surface area is the width times the length + the height times the length + the height times the width all multiplied by 2.
5+5
The equation for the surface area of a rectangular prism is: A = 2lw + 2lh + 2wh Replace the variables you know, and solve for the remaining variable.
Volume of rectangular prism = area of base x height
A= 2(wh+lw+lh) where w = width h = height and l = length When trying to find the surface area of something, it is important to try to remember the specific formula. The formula for the surface area of a rectangular prism is A=2(wl+hl+hw).
The answer is 32 you find the answer by simply multiplying 8*4. Hope this helps your problem!