# Trigonometry - PowerPoint PPT Presentation

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Trigonometry. By: Justin Ferranto. What is Trigonometry?. Trig. Basically deals with the study of triangles. Mathematicians use trig. to study relationships between the sides and angles of a triangle. . Where did Trig. originate?.

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Trigonometry

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## Trigonometry

By: Justin Ferranto

### What is Trigonometry?

• Trig. Basically deals with the study of triangles.

• Mathematicians use trig. to study relationships between the sides and angles of a triangle.

### Where did Trig. originate?

• Trig. is believed to have originated from the Greek words “trigonon” and “metron” which mean triangle and measure.

### Mathematician who founded trigonometry

• The main mathematician who invented trig was Hipparchus.

• Hipparchus was born at Nicaea in Bithynia and was believed to be the main mathematician who invented trig.

### Four real-world applications that involve trig.

• It’s used to find the distance between stars and other things in space

• Used in oceanography to calculate thetheight of the tides.

• Used to find the height of towers and mountains.

• Architects use it to determine structural load, roof slopes, ground surfaces, etc.

### Trig functions

The six trig functions are sine, cosine, tangent, Secant, Cosecant, and Cotangent.

Three most used: sine, cosine, and tangent.

Sine- Tangent- Cosecant-

Cosine- Secant- Cotangent-

### Interesting trig. website

• http://www.mathsisfun.com/algebra/trigonometry.html

• Basically gives an introduction to trigonometry.

### A fun trigonometric project.

• G:\Trigonometry Project Information Sheet.doc

### What is the unit circle?

• The unit circle is just a circle with a radius of one.

### Works Cited:

• Martin, C., and C. Wilborn. WiseGeek. Conjecture, 19 May 2012. Web. 03 Sept. 2012. rigonometry.htm>.

• Web. 03 Sept. 2012. <http://www.math.rutgers.edu/~cherlin/History/Papers2000/hunt.html>.

• "FASCINATING FACTS OF MATHEMATICS." : Applications of Trigonometry in Real Life. Web. 03 Sept. 2012. <http://malini-math.blogspot.com/2011/08/applications-of-trigonometry-in-real.html>.

• "Trigonometry Functions - Introduction." Introduction to the 6 Trigonometry Functions. Web. 03 Sept. 2012. <http://www.mathopenref.com/trigfunctions.html>.