Geometrical figures were used to convey rationality and emotions aimed at the feeling of accuracy and logic. This is because artists explored the fact that geometrical figures are mathematical elements, addressing great rationality when used. The artists used this nature of geometrical figures to deepen the subjectivism of artistic works, through elements that promote logic, being able to use geometrical figures to create criticisms, exaggerations, and even atheistic and social questions.
The cornu is a bronze G-shaped instrument used by the Roman army to communicate orders to troops in battle. It is also known as curved tuba, had an approximate length of 3 meters
