Extra money

Yapo City Mathematics Branch, the lobby on the first floor.

With the passage of time, the smile that was always maintained on Dunn's face began to gradually disappear.

A time of divine grace has passed. Faced with the three simple ruler and rule drawing problems, it seems that each problem has been advanced a lot, but none of the problems have been solved.

As the head of the visiting scholar group, he began to notice that something was not right.

Calvin is not a fool. On the contrary, these days, he gives Dunn a very shrewd feeling. Calvin, who is as shrewd as a fox, has no reason to keep them with three simple questions.

But these three questions seem really simple.

Using a ruler to halve a given angle, scholars can do it in as little time as possible. How difficult is it to divide an angle into thirds?