Section 4.2 - Trigonometric Functions of Acute Angles

Essential Question(s): 

Summarize the trigonometric functions.

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Follow these three steps to complete this "flip" lesson.

STEP 1: Preparation 
Title your spiral with the heading above and copy the essential question(s).

STEP 2: Vocabulary & Examples 
Copy and define the following of vocabulary. This can be any tables, properties, theorems, terms, phrases or postulates listed. Review the following examples and copy what is necessary for you. Use the guiding questions for your cornell notes.

Right Triangle Trigonometry

• What is standard position? (pg 360)
  
• What are the six trigonometric functions? (pg 360)

Two Famous Triangles

• Review the 45-45-90 and 30-60-90 triangle ratios. (Ex 1 & 2 pg 361-362)
• How can you use on trig ratio to find them all? (Ex 3 pg 362)

Evaluating Trig Functions with a Calculator

• What are the four common calculator errors when evaluating trig functions? (Pg 363-364)
  
• Review how to get an exact answer. (Ex 4  pg 364)

Applications of Right Triangle Trig

• What does "solving a right triangle" mean? (pg 364)
• How do you solve a right triangle? (Ex 5 pg 365)
  
• How can you find the height of a building? (Ex 6 pg 365)
• Review a word about rounding. (pg 365)

STEP 3: Reading
Read the following page(s) and take any extra notes as needed.

• Read pages 360 - 365.
• Make sure to read the paragraphs between the examples.

Sine, Cosine, Tangent

Solving Right Triangles

Inverse Sine, Cosine, Tangent

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