#### Transcript of Trigonometry

Hypotenuse:

Whats is trigonometry?

Hipparchus of Nicaea

The three main trigonometric functions.

Sine,cosine

and tangent

Trigonometry in Math

Sine

What if a restaurant needed to build a wheelchair ramp for its customers? The angle of elevation for a ramp is recommended to be 5°. If the vertical distance from the sidewalk to the front door is two feet, what is the horizontal distance that the ramp will take up (x)? How long will the ramp be ( y )?

Functions in real life:

**Trigonometry**

Tangent

Cosine

Greek astronomer

Geographer

Mathematician

Law of sine

Law of cosines

Euler's formula

Angles:

What is the sine of 35°?

If the distance of a person from a tower is 100 m and the angle

subtended by the top of the tower with the ground is 300,

what is the height of the tower in meters?

degrees

radians

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

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