Because trigonometry is concerned with the lines (their lengths) and angles between lines. The latter requires knowledge about their direction.
Trigonometry is essential to the study of higher mathematics (calculus) and to the understanding of many scientific and engineering principles. Trigonometry and calculus can be used to model many shapes, motions, and functions in daily life.
They need to study how stresses and other forces will act in structures and trigonometry is essential for studying these.
I personally study trigonometry because it is absolutely exhilarating for me.
geometry
geometry
algebra
Trigonometry is specificly the study of a right triangle. For example, what is the cosine? Geometry is the study on shapes.
Yes
Trigonometry involves the study of triangles and their properties.
it is part of geometry
Angles were known before trigonometry. Trigonometry was the study of angles and their relationship to shapes.
It is the study of triangles and their properties. The word 'trigonometry' means three measurements.