The betel palm, a species of palm tree found primarily in Asian countries, yields a seed known as a betel nut. Natives of the Asian and Indian countries where this tree is found use the nut much like those in Western countries use chewing tobacco or snuff.ixing it with spices or tobacco seems to improve its taste, but flavored betel nut is not always embraced in certain Asian countries. Long-term chewing can stain the user's teeth black and create a number of health problems requiring serious medical intervention.
Symbolically, the minor and major arcs are denoted by the following: The semicircle represents an arc whose endpoints coincide with endpoints of the diameter. The semicircle is represented by three points using the same methodology to represent a major arc.
Notice that this naming can be ambiguous. For example it may mean the major arc AB, where you go the long way around the bottom of the circle. Unless stated otherwise, it always means the minor arc-the shortest of the two. If you want to indicate the major arc, add an extra point and use three letters in the name.