- A16
- B30
- C20
- D26
Step-by-Step Solution
The layers from the top are and cubes. 16 counts only the bottom layer (or only the cubes whose tops you can see).
Answer: B) 30
This pyramid is built from identical cubes: each layer is a square of cubes centred on the layer below it. How many cubes are there in the pyramid, including the hidden ones?
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