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.
The degree measure of a minor arc of a circle is the measure of. its corresponding central angle. In Figure 19.2, Degree measure of PQR = xÂ°. The degree measure of a semicircle in 180Â° and that of a major. arc is 360Â° minus the degree measure of the corresponding minor. arc. Relationship between length of an arc and its degree measure. Length of an arc = circumference. degree measure of the arc. 360. Ã.