# The areas of the bases of two similar cones are in the ratio of 9:16 Find the ratio of the heights of the cones

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Since the ratios of the areas of the bases is 9:16 the scale factor is 3:4. **Thus the ratio of the heights is 3:4.**

** If the ratio of corresponding areas of two similar figures is `a^2:b^2` , then the ratio of corresponding lengths (the scale factor) is `a:b` **

The ratio of their volumes will be `a^3:b^3`