what is the measure for pie of a circle
All the way around the circle is 360o and the 50% wedge goes half way around so the central angle for the 50% wedge is 50% of 360o which is 1/2 Ã 360o = 180o. The 40% wedge uses 40% of 360o as its central angle and hence the angle is 40% of 360o or 40/100 Ã 360 = 144o.