The pyramid in the figure above has squa...

The pyramid in the figure above has square base FGHI , and all triangular faces are congruent. The base BCDE of the small pyramid is also square , and is parallel to FGHI. If the ratio of the area of square BCDE to the area of square FGHI is 1:4 , what is the ratio of the volume of the small pyramid to the volume of the large pyramid ?

`1:2`

`1:3`

`1:4`

`1:8`

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