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27 February, 10:06

The ratio of the base edges of two similar pyramids is 3:4. The volume of the larger pyramid is 320 in3. What is the volume of the smaller pyramid?

240 in3

189 in3

135 in3

180 in3

+3
Answers (1)
  1. 27 February, 10:16
    0
    Use similar volume to calculate

    which is the (ratio of edges) ^3 = (ration of volume)

    so just put the numbers in, let the volume of smaller pyramid be y.

    (3/4) ^3 = y/320

    27/64 = y/320

    y=135in3
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