olemus
diagramm, mis esitab ringi sektoritega
mingi terviku jagunemist osadeks

Wiktionary:
a pictorial graph in the shape of a circle, with segments representing related proportions

ülevaateid
https://en.wikipedia.org/wiki/Pie_chart

näiteid
https://www.silicon.co.uk/wp-content/uploads/2017/08/Security-Poll-Pie-Chart.png

https://www.researchgate.net/profile/Oluwasegun-Adelaiye/publication/331210253/figure/fig1/AS:728084324036608@1550600238182/A-Pie-Chart-of-Common-Vulnerabilities-Associated-with-APT-Attacks.ppm

https://exceljet.net/sites/default/files/styles/original_with_watermark/public/images/charttypes/bar%20of%20pie%20chart.png

https://cyberinterface.files.wordpress.com/2015/06/cybercrime-top-20-countries-pie-chart1.jpg