Introduction of Trigonometry

We have worked on Arithmetic, Algebra, Geometry. Today the topic i have selected is a very interesting concept of math called Trigonometry. First let me give you the introduction to this word Trigonometry and we would learn how to solve a problem on trigonometry. There are a lot of online help you can get to understand what is trigonometry, check these sites as they are very helpful.

Introduction of Trigonometry:- Trigonometry is derived from the greek word which means "Study of a triangle" It gives us the relation between the angles. They are used to relate the angles and the length of a angle. It is used to solve problems on geometry and astronomy. With the help of trigonometry we find the height of a building.

The ratios of two sides of a triangle are taken. There are six possible combination. Each ratio is given a special name.

In this subject Greek letters are usually used.

(i) (Alpha) (ii) b (Beta) (iii) q (Theta)

(iv) g (Gamma) (v) f (Phi) (vi) l (Lamda)

and so on to indicate the measure of an angle.

Lets solve a problem of Trigonometry.

Problem No1:- Calculate the T-ratios of angle A and angle C from the given figure.

The trig function sine, it is written sin θ. We will learn on this more in my next post. Feel free to leave your comments.