 Lily In
The Water Largest
Area Of A Triangle Interior
Diagonal Of A Cube River
Bank And Island Walking
Around The Equator Largest
Area Of Inscribed Rectangle Ratio Volume Ratio Seven Rings
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- can be solved by
an elementary school student
- can be solved by a
middle school student
- can be solved by a high
school student
- can be solved by a
person with a basic knowledge of number theory
- can be solved by a
person with much mathematical experience and ingenuity