Three Ray Revolution - Angles at a point

Ryan Smith
When you have more than two angles in a revolution, each of the angles adds to 360. In the example below, you can adjust ABC (also angle in the slider). Author's note: if you make this angle more than 280, things start to get a little messy. Notice that all three angles add up to 360. When more than two angles share a vertex, it is called "angles at a point".