to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This image of simple geometry is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.
Legal disclaimer This image is or contains a symbol or symbols prohibited by Vietnam's National Assembly, due to (variously) representations of South Vietnam, or similar governmental structures; or of organizations associated with said. Applicable law is Article 117 of the 2015 Criminal code.