Trigonometry Homework

1. Define/Describe trigonometry:
a) Trigonometry- is a part of mathematics that deals with the relationship between sides and angles of triangles and then take those relationships and calculates, called the trigonometric functions.
http://www.thefreedictionary.com/trigonometry

2. Describe some of the early uses? Why was it invented?
a) The primary use of trigonometry in early uses was for operation, cartography, astronomy, and navigation. The old Egyptians looked upon trigonometric functions as features of similar triangles, which were useful in land surveying and when building pyramids. Trigonometry was invented mostly to help operate a sufficient astronomy and navigation system with the use of math.
http://home.c2i.net/greaker/comenius/9899/historytrigonometry/Trigonometry1.html


3)  Describe a current use of trigonometry.
a) Trigonometry is know mostly for its application to measurement problems, but can be used such as its place in the theory of music; still other uses are more technical, such as in number theory . Also the mathematical topics of Fourier series and Fourier transforms. 
http://en.wikipedia.org/wiki/Uses_of_trigonometry


4) Find the height of two objects outside. Explain your work. 
Basketball Hoop:
tan10=x/12 * 12
X= 2.1 
25.2 in
48 in
8 in
81.2 in = Height

Sign in parking lot: 
Tan40=x/9 * 9 
X= 7.6 ft
     91.2 in
Height= 147.2