It is important to me because I am a mathematics tutor and I would not be able to do my job if I cold not teach my pupils a part of their syllabus.
Trigonometry is not important ever
The earth, which we live on, is approximately a sphere. It is important, therefore, to know spherical trigonometry.
Some chemical reactions depend on the shape of molecules and the study of the shape of molecules - requires knowledge of trigonometry.
maths is important in astronomy algibra and trigonometry
The students and teacher of my trig. class
Trigonometry is important in daily life for many reasons. People use patterns and symmetry in relating to objects around them. For example. trigonometry is used in decorating a home.
An important contribution by Menelaus of Alexandria was his works on geodesics.
plane trigonometry spherical trigonometry
The main kinds are plane trigonometry and solid trigonometry. The latter will include trigonometry in hyper-spaces.
I live in a house. It could not have been built without trigonometry.I get about on a push-bike, car or other vehicles. None of these would work without trigonometry.
Engineers use trigonometry anywhere that involves non-right angles. That includes building cars and buildings, bridges, and many other structures. they also use trigonometry when dealing with fields, like magnetic and electric fields. Also, trigonometry is very important with engineers who deal with waves, such as sound or light engineers.
Historically, it is because we live on a planet which is approximately spherical. 2-dimensional trigonometry was adequate for relatively small shapes where the curvature of the earth had negligible effect. For larger shapes the spherical nature of the earth was important and therefore, so was spherical trigonometry.