- continued...
The solid now stands on the base of the cylindrical portion, whose diameter is \(A B\), and is gently tilted about \(A\).
\includegraphics[max width=\textwidth, alt={}, center]{1bcb4e33-b27c-48f0-9540-9ec553e7fe40-2_227_237_219_1745}
(c) Find the angle between \(A B\) and the horizontal when it is on the point of toppling.