Angle in a regular circle or infinite polygon – Calculate – Value – Formula?

Hello, What is the angle at which the circle rotates, so to speak between "two" sides? The fact is that the circle is theoretically a polygon with infinite sides/corners. In a regular triangle the angle between two sides is 60°. In a square it is 90°, in a pentagon it is 108°, and in a…

Determining the material of a body using only mass and weight under water -IMPOSSIBLE-?

Hello everyone, I'm at my wits' end… I have the following task: ————————— A body has a mass of 14.82 kg. When immersed in water, the dynamometer shows 129.16 N. What material is the body made of? ————————— and I don't know how to solve this problem… I've already calculated the body's weight (= 148.2N…