Answer:
I'm pretty sure a set a decimal fractions is {1/4, 1/2, 3/4}
I think a set of whole numbers is {3, 4, 5.}
A set of integers might be {-2, -1, 0, +1.}
I'm am sure a set of natural numbers is {1, 2, 3.}
The set if rational numbers is {0.1, 0.2, 0.3} I think.
I am not that sure if my answers are right or not so sorry if this is incorrect.
If the radius is tripped, the volume will increase by 3^3 = 27 times.
Answer: 27 times
The two regular hexagons could have different side lengths, so they will not necessarily always be congruent, but they will always be similar.
