What an ingenious graphical mathematical logic problem!This question may seem simple, but it is not so easy to really explain clearly, and it is a great challenge to your logical thinking skills, reasoning skills, analytical skills, spatial imagination skills and language expression skills.
The content of the problem is: there are two circles, one of which has a radius of 2 and the other has a radius of 1. The small circle rolls around the great circle on the outside of the great circle, and the small circle rotates for several weeks
First of all, I want to make it clear to you that the answer is not 2 weeks, and if this question is that simple, it will not exist.
Secondly, I can give you a small hint, that is, you can first find the center of the big circle and the center of the small circle, and then use the line segment to connect the two circles, and then use the center of the big circle as the center of the circle, and draw a new circle with the line segment connecting the two centers as the radius. Imagine in your mind the dynamics of a small circle rolling around the circle outside the circle.
Finally, do you know the detailed and specific logical reasoning process and answers?If you know, you can leave a message in the comment area, and I'll see if there is a correct answer and a complete analysis process that is logically clear and easy to understand. [smiles].