Similar frustums
The upper and lower radii of a frustum of a right circular cone are 8 cm and 32 cm, respectively. If the altitude of the frustum is 10 cm, how far from the bottom base must a cutting plane be made to form two similar frustums?
Correct answer:
![](/img/23/frustum.jpg)
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Math Student
m is radius of middle circle = radius of a bottom of upper frustum and radius of top of bottom frustum.
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