If you mean π. Then, all that will be ; V=πr²h First of all, you have to divide the both the sides by πh. You have to do this because the relationship between r and those two characters is multiplication. The opposite of multiplication is division. Anyway; V/πh=πr²h/πh V/πh=r² Next you have to take the square root of both sides. This is done to cancel the square. Anyway; √V/πh=√r² The square root cancels the ². Anyway, you will be left with; √V/πh=r So; r=√V/πh. Hope i helped. Have a nice day.
