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There are a number of meanings for the word arc in mathematics. In general, an arc is any smooth curve joining two points. The length of an arc is known as its arc length. In a graph, a graph arc is an ordered pair of adjacent vertices. In particular, an arc is any portion (other than the entire curve) of the circumference of a circle. An arc corresponding to the central angle is denoted . Similarly, the size of the central angle subtended by this arc (i.e., the measure of the arc) is sometimes (e.g., Rhoad et al.
What is Pie in Math. Pie in math does not actually have a letter âeâ in the word. It is only referred to as Pi and has the. In its etymological meaning, Pi is actually a Greek letter, which is basically used as representation of the number to calculate and measure the circumference of a circle.