Teaching the Sine and Cosine Theorem in the Context of the Congruence of Triangles

Abstract

The article first notes the inclusion of trigonometry in high school mathematics education plan. Then presents the teaching of trigonometric theorems using the congruence of triangles, analyzes the processing of this topic in the current and older textbooks, compare these books between and mentions the experiences of its author.

Keywords

• teaching
• trigonometry, sine theorem
• cosine theorem
• congruence of triangles