oh god that toy brings back memories
I think it is A. Natural Sculpture, because your question asks about a type of environment sculpture, so pretty sure it is natural from the environment. Hopefully it is right :)
For example, if there is a L shaped sketch and you dimension from the bottom of the L to just above the horizontal part, and then you dimension the vertical part from the end point of the last dimension you'd be okay. But, if you dimensioned both of those lengths and then the total length you would be over dimensioning the sketch.
1: The sides will be the same when cut in half, but the closest number that could be guessed is 3in
2: Wont matter much, they’re both the same
3: My speculation is that the Black square in 4x6. In order to know the size of a white square we have to do the following
4 + 4 = 8 left vertical side
6 + 6 = 12 upper horizontal side
So we have an answer: The white square is 8x12
