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Warm-up 9/13 Pre-Calc

Warm-up 9/13 Pre-Calc. Mr. V’s wife bought some running shoes this weekend. They were on sale for $45, but they were $65 last week. What was the percent discount? Estimate Which side is opposite angle A? TOTD: adjacent. B. A. C. Warm-up 9/13 Bk. 3. Draw right triangle ABC

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Warm-up 9/13 Pre-Calc

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  1. Warm-up 9/13 Pre-Calc • Mr. V’s wife bought some running shoes this weekend. They were on sale for $45, but they were $65 last week. What was the percent discount? • Estimate • Which side is opposite angle A? • TOTD: adjacent B A C

  2. Warm-up 9/13 Bk. 3 • Draw right triangle ABC • Draw parallel to • Draw the following figure: W is the midpoint of line segment . • Term of the Day: Vertical Angles

  3. In case your notes don’t have this… Sin = Cos = Tan = H O θ A …then write it down now

  4. Get into Trios • Two contestants, One scorekeeper • The scorekeeper holds up the triangle and asks for a side. • “What side is opposite angle A?” • The two contestants must say TWO LETTERS • “RV!” • After all four pages, then the winner plays the scorekeeper and the non-winner is the new scorekeeper.

  5. M For Example… R V

  6. Nab ‘em An exercise in speed and trigonometry

  7. Here’s the deal… • Get out a half-sheet of paper • You’ll see a triangle on the wall • I’ll call out a Sine, Cosine, or Tangent and an angle. • The two contenders race to “Nab” the correct numbers and put them into the red box • You write on the paper the correct Trig Function and fraction

  8. B 20 12 A 16 1220 1620 Sin A= Sin B=

  9. R 9 3 Q 7 39 73 Cos R= Tan R=

  10. U 11 5 F 9 95 Tan U=

  11. 10 8 θ 16 816 8 10 Sin θ= Tan θ=

  12. 15 M 2 W 14 14 2 Tan M =

  13. 13 Y 4 16 G 416 Cos G =

  14. 7 P 13 18 V 713 Tan V=

  15. 7 N L 6 2 67 Cos N =

  16. ALISON • Before you leave today, you will take a mini-quiz. • Until then, work on ALISON • Or else this guy will come after you.

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