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OpenStudy (anonymous):
The edges of two similar pyramids have a scale factor of 2 : 5. If the volume of the smaller pyramid is 16, what is the volume of the larger pyramid? a.67.5 b.250 c.125 d.500
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OpenStudy (anonymous):
hint: the ratio of area between the pyramids is (2:5)^2~right?
OpenStudy (anonymous):
im honestly not sure
OpenStudy (anonymous):
the scale factor is the ratio of their lengths, so square that and you'll get the ratio of their areas. Cube it and you'll get the ratio of volumes.
OpenStudy (anonymous):
so i square root 2:5^2
OpenStudy (anonymous):
i got 2:25
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