Answer:
3 : 5
Explanation:
The ratio can be determined using the radii or the heights of the 2 cones
radii 6 : 10 = 3 : 5 ← in simplest form
height 9 : 15 = 3 : 5 ← in simplest form
that the are both have a right angle. And that the are both cones.
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