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θ. 3/1 Bell Ringer. 2√3. 4. What is ? What is ? What is ? What is ?. 2. Homework: Finish Today’s Independent Practice. 3/1 News and Notes. Perfection Award: 4 th Period Tests back Reminder about test corrections QUIZ FRIDAY!. Bell Ringer Review. θ. 2√3. 4. 2.

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3 1 bell ringer

θ

3/1 Bell Ringer

2√3

4

What is ?

What is ?

What is ?

What is ?

2

Homework: Finish Today’s Independent Practice

3 1 news and notes
3/1 News and Notes
  • Perfection Award: 4thPeriod
  • Tests back
  • Reminder about test corrections
  • QUIZ FRIDAY!
new material
New Material
  • All we’re doing today is naming the functions that represent the ratios from the bell ringer!
quick check sohcahtoa
Quick Check - SOHCAHTOA
  • What trig ratio is represented by 3/5 in following diagram?
  • 3 = adj
  • 5 = hyp
  • Adj/hyp = COSINE!  cos(Θ) = 3/5

Θ

5

3

4

guided practice
Guided Practice
  • A painter needs to reach the top of a 15 foot tall sign. He uses a ladder of length x to reach the top of the sign. The angle formed where the ladder meets the ground should be labeled Θ.
  • Step 1: DRAW A PICTURE, labeling what you can.
slide9

Step 2: What trig ratio would you use to represent this situation? Explain why.

Sin because opp = 15 and hyp = x.

  • Step 3: Write the full trig equation
  • HONORS: If Θ = 60°, what is the length of the ladder?
independent practice
Independent Practice
  • We will finish with an Exit Ticket!
act question of the day
ACT Question of the Day

In the figure below, what is ?

A. sine of angle G only

B. cosine of angle G only

C. cosine of angle H only

  • sine of angle G and cosine of angle H.
  • Sine of angle H and cosine of angle G.

Homework: Finish IP