Download Presentation
## 3/1 Bell Ringer

- - - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - - -

**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: 4thPeriod • Tests back • Reminder about test corrections • QUIZ FRIDAY!**Bell Ringer Review**θ 2√3 4 2**New Material**• All we’re doing today is naming the functions that represent the ratios from the bell ringer!**SOH-CAH-TOA**5 3 Θ 4**5**Now fill in with regard to 3 Θ 4**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**• 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.**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**• We will finish with an Exit Ticket!**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