Consider the demonstration shown below.
You control the angle and the radius of the inside circle.
There is a common mistake people make when thinking about angles.
Based on the demonstration, what do you think the mistake is, and what is the demonstration telling us...?

You control the angle and the radius of the inside circle.

There is a common mistake people make when thinking about angles.

Based on the demonstration, what do you think the mistake is, and what is the demonstration telling us...?