How to write the equation of a circle in polar form to rectangular

The video tutorial discusses solving a radius problem by identifying R-squared and cosine multiplication. The instructor explains why certain methods are not preferred and decides to square both sides to solve the problem. The session concludes with school and sports announcements.

What are the two ways to identify R mentioned in the text?

What is the relationship between R and cosine as mentioned in the text?

Why does the speaker prefer to square both sides instead of multiplying by R or cosine?

What is the significance of squaring both sides in the context of the problem?

What instructions were given to the JB flight football players?