Longer piece=2x+1
shorter piece=x
2x+1+x=16
3x=15
x=5
The shorter piece is 5ft and the longer is 11ft
Did that help any?
Im not even sure about this though
Answer:
Step-by-step explanation:
I think you need to first find the surface area for the 3 composite shapes which is the cube and the two triangular pyramids.
Once you have the surface area for all the three, then just add all of them together.
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