Question

Sam cut a pie into equal slices. There are only 3 slices left. The angle measure for the three slices is 72. How many slices did sam cut the pie into?

Answer 1

he cut it in 5 parts because :
 72X3=216
360-216=144
144/72=2
2+3=5

Answer 2

72÷3=24
360°=1 full circle
360°÷24°=15
15 slices