Unlike upstairs, my answers are countless because you didn't say end to end.

Logically speaking, to make a triangle is to make a triangle with three sticks. In that case, why aren't there countless answers?

At present, the purpose of education in China is to "cultivate students' innovative spirit and practical ability". Is it important to innovate and divergent thinking, or to continue to cultivate the so-called "rigor"? From a practical point of view, in real life, this "wooden stick" that is not connected end to end actually has many applications, such as a three-axis drone.

Mathematically speaking, it is indeed 1/4. The answer upstairs is very professional, awesome!