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.
Law of cosines with an obtuse angle. Law of cosines with an obtuse angle svg Geometrical demonstration outline of the law of cosines for triangle with an obtuse angle Author Rgis Lachaume Law of cosines
Page 2023 Free-images.com. All images are Public Domain