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1.Mr. Vs wife bought some running shoes this weekend. They were on sale for $45, but they were $65 last week. What was the percent discount? 2.Estimate 3.Which side is opposite angle A? TOTD: adjacent Warm-up 9/13 Pre-Calc A B C

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Warm-up 9/13Bk. 3 1.Draw right triangle ABC 2.Draw parallel to 3.Draw the following figure: W is the midpoint of line segment. Term of the Day: Vertical Angles

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In case your notes dont have this… Sin = Cos = Tan = …then write it down now θ O H A

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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.

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For Example… M R V

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Nab em An exercise in speed and trigonometry

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Heres the deal… Get out a half-sheet of paper Youll see a triangle on the wall Ill 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

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12 16 20 B A Sin A= 12 20 Sin B= 16 20

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3 7 9 R Q Cos R= 3939 Tan R= 7373

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5 9 11 U F Tan U= 9595

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θ 10 16 8 Sin θ = 8 16 Tan θ = 8 10

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2 14 15 W M Tan M = 14 2

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4 16 13 G Y Cos G = 4 16

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V 18 7 13 P Tan V= 7 13

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L 7 6 N 2 Cos N = 6767

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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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