Section 4.3 Right Trigonometry

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Presentation transcript:

Section 4.3 Right Trigonometry

Right Triangle Definitions of Trigonometric Functions

Trigonometry values for a given angle are always the same no matter how large the triangle is

Example 1

Function Values for Some Special Angles

Example 2

Trigonometric Functions and Complements

Look back at the sines and cosines for the 30-60-90 triangle - Cofunctions of complementary angles are equal!!!

Example 3

Applications

Example 4

Example 5

(a) (b) (c) (d)

(a) (b) (c) (d)

Homework: Read Section 4.3 Complete pg. 484-485 ## 4-28 (multiples of 4), 30-60 (even)