Clocks have generally been a practical way to teach about angles. This clock has angle measurements built-in. Initial established the method to angles, to have the Command set. In angles mode you might now see a protractor button simply click it to toggle the Display screen in the protractor. Following https://elliothebxv.angelinsblog.com/21386779/the-fact-about-24-inch-diameter-wall-clock-that-no-one-is-suggesting