This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Kon geometry. Cone geometry Files by User Sebbe wigmo from sv User Sebbe wigmo on org sv page is was here PD Uploaded using de php CommonsHelper or de php PushForCommons
Page 2023 Free-images.com. All images are Public Domain