Answer :
Well half of a pie is 50%, divide that by three and that equals about 16.67 if you round it, but if each piece has an angle of 25, those pieces aren't equal.
360 / 2 = 180
180/4 (4 is the number of people who at the pie) = 45
The calculations aren't correct, the correct calculation is 45°
180/4 (4 is the number of people who at the pie) = 45
The calculations aren't correct, the correct calculation is 45°