Volume of each of the smaller tetrahedral
blocks is all the same.
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Kite, octane & double corner.
Scooting them closer its easy to see they have
the same height.
Tipping them over, it's easy to see they have
the same base.
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Since the kite, octane & double corner
all have the same height and base
and since volume is (base*height)/3,
All these pieces have the same volume.
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