What's the meaning of trigonometry???

Question

I read a topic about this, but I can't understand! Please help...

Answer 1

The study of angles and of the angular relationships of planar and three-dimensional figures is known as trigonometry.

Answer 2

Trigonometry is a branch o mathematics ( sorry about my spelling but i do live in Romania ) that studies the relations inside a circle...it`s used in science, navigation , telecommunications and a lot more..it` basics are the sin and cos .. imagine this a circle with 2 diagonals that intersect at the center at 90 degrees...we know that the circle has 360 degrees which is in mathematical terms 2 pi ...the horizontal diagonal represents the cos relation and vertical the sin relation...( take note that in trigonometry a circle has a diameter of 2..just a 2 an abstract number ) u calculated the sin and cos of an angle by drawing a parallel to its diagonal in the angle u choose...if u have any other questions i`ll be glad to help...i`ll send u a lesson plan on this matter in English so hopefully u understand better..

Answer 3

Remember that "geometry" is made up of two words--"geo" (earth) and "metry" (measure). So "geometry" literally means "earth measure," and it was developed to help surveyors determine lengths and areas when they were measuring land.

"Trigonometry" also comes from two words--"trigon" (a three-sided polygon, or a triangle) and "metry" (meaning measure). So "trigonometry" literally means "triangle measure." Using the tools of trigonometry, facts about triangles (the length of a side, the size of an angle, the area of the triangle) can be determined.

This is also useful in other areas. Trigonometry does provide us some tools for working with circles (finding the length of an arc or a chord, or the area of a sector). It also helps with any other polygon, because any polygon can be divided into triangles. In a sense, triangles are the basic "building blocks" for all of the other polygons.

Answer 4

Trigonometry (from the Greek trigonon = three angles and metro = measure) is a branch of mathematics dealing with angles, triangles and trigonometric functions such as sine, cosine and tangent. It has some relationship to geometry, though there is disagreement on exactly what that relationship is; for some, trigonometry is just a subtopic of geometry.

Answer 5

A typical trigonometry class will do three things. One, it will teach you about the trigonometric functions (sine, cosine, tangent, etc.). You will learn how to use them as functions (put number in, number comes out) and also as ratios. You will use this info to solve practical problems. You will also learn how the trig functions relate to circles.

Two, you will learn about trig identities and learn how to convert one form of a trig expression to another form. This will seem horribly pointless until you get to calculus and realize that not all forms of trig expressions are easy to work with. While you're learning trig, you can punch values into your calculator and so you don't really give a damn if sin^2 x + cos^2 x = 1. But when you get to calculus, you'd really, really, much rather have the 1 than the sin^2 x + cos^2 x, so you need to learn how to convert between the forms. These exercises also hone your algebra skills, something you will definitely need for calculus.

Three, you will learn how to "solve" triangles, which means to find the remaining side lengths and angle measures of a triangle. Unless you go into a field that requires this skill specifically, you won't really need it; BUT it also teaches you many math skills that you definitely will need. For example, you learn how to look at a problem and find out if you have enough information to solve it, and if not, what information you might need. When you're solving non-trig problems in real life, this is a terribly important skill to have, since real-life problems are rarely presented to you with everything you need to solve the problem all laid out for you.

To sum up, the concepts you learn in trig are important, but just as important to your mathematical future are the mental skills you develop while learning them. Sometimes it can seem meaningless when you're doing it, but it's like a puzzle; the pieces won't really come together until you've studied calculus.

Answer 6

Put simply trigonometry is mainly three equations:

Sin=opposite/ hypotenuse
Cos= adjacent/ hypotenuse
Tan= opposite/ adjacent

Opposite, hypotenuse and adjacent are different sides of a triangle ( though which side is which can change each time and it'll be too confusing to explain without diagrams sorry). These equations help work out either the angle or the length of the side of a triangle.

Answer 7

Originally (about 2400 years ago), trigonometry was the study of the ratios of the lengths of the sides of right triangles. It allowed for determining things like the heights of mountains or tall trees, or how far away a ship was based on the use of proportionality to the sides of similar triangles.

Answer 8

The branch of mathematics that deals with the relationships between the sides and the angles of triangles and the calculations based on them, particularly the trigonometric functions.

Answer 9

The study of triangles, the relationships between various parts and types of triangles, and trigonometric functions such as sin, cos, tan, arcsin, etc.

Answer 10

Trignometry is the study of triangles and the geometric relationships of thier sides and angles.



Trignometry is a combination of the words triangle and geometry.