Insert a pie chart

Select data you want to include in the chart.

Go to Insert and select   Pie.

Select  2D Pie,  3D Pie, or  Doughnut.

Select data you want to include in the chart.

Go to Insert and select the  down arrow under   Pie. 
For Single Line Ribbon, select the  down arrow next to the chart gallery.

Select  2D Pie or Pie, or  Doughnut.