Angles are key pieces for the development of geometry. It is present in our daily lives such as stairs, building cranes, constructions such as the Leaning Tower of Pisa, among others. In Euclid’s book Elements, this concept was well worked on, even decades before Christ. Examples of angle applications Next, we present some applications of angles. Building Crane Tower of Pisa Ladder A widely used example is the clock, with the movement of the hour and minute hands, the angles are formed and the time is defined.
In the previous post we talked about several important definitions for angles in flat figures. Now, we deepen the concepts through the properties of angles for applications in flat figures. angle bisector of an angle Definition: the angle bisector of an angle is a ray, which starts from the vertex of the angle and divides it into two congruent angles ($\cong$). angle bisector produces two congruent angles. Ampliar figura para ler os detalhes From the figure, we notice that