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.
Square on sphere. Square on sphere svg Example square geometry on sphere with deg internal angles org Squareonsphere originally uploaded to en in July org php title Special Log page File Squareonsphere log Tomruen talk PDuseren Tomruen Spherical geometry Order square tiling
Page 2023 Free-images.com. All images are Public Domain