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2/6/12 Sect. 7.3 Special Right Triangles: SWBAT use properties of : and triangles.

2/6/12 Sect. 7.3 Special Right Triangles: SWBAT use properties of : and triangles. Bell Ringer : Go over Worksheet Practice 7.2, 7.1 HW Requests: pg 346 #35-38, 41, 44; Special Assignment. FQ 1: How do we derive special triangles from equilateral and squares?

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2/6/12 Sect. 7.3 Special Right Triangles: SWBAT use properties of : and triangles.

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  1. 2/6/12 Sect. 7.3 Special Right Triangles: • SWBAT use properties of : and triangles. • Bell Ringer: Go over Worksheet Practice 7.2, 7.1 • HW Requests: pg 346 #35-38, 41, 44; • Special Assignment. • FQ 1: How do we derive special triangles from equilateral and squares? • HW: pg360 #12-17, 18-24 evens, pg 362 #48, 50; • Announcements: ******Quiz: Friday 7.1 -7.3

  2. 2/7/12 Sect. 7.3 Special Right Triangles: • SWBAT use properties of : and triangles. • Bell Ringer: Reading across the content - Vocabulary • Parking Lot: Worksheet Practice 7.1; pg346 #35-38, 41, 44; • HW Requests: pg 360 #12-17, pg362 #48, 50; • HW:, pg 360 19-25 odds, 26, 31, 36-38, 40, 41 • In Class: Worksheet • FQ 1: How do we derive special triangles from equilateral and squares? • Announcements: ******Quiz: Friday 7.1 -7.3

  3. 2/8/12 Sect. 7.3 Special Right Triangles: • SWBAT use properties of : and triangles. • Bell Ringer: Go over Worksheet 7.1 • Parking Lot: Worksheet Practice 7.1; pg346 #35-38, 41, 44; • HW Requests: #18, 20, 25 • HW: Carry over pg360 19-25 odds, 26, 31, 36-38, 40, #12-17, 18-24 evens ADD 27, 29 Bonus: #28 • Complete TIA Reading Across the Content • In Class: Finish Worksheet pg 361 #22, 23, 26 • HW: Announcements: ******Quiz: Friday 7.1 -7.3

  4. 2/9/12 Sect. 7.4 Trigonometric (Trig) Ratios • Notes: SWBAT compute trigonometric ratios- sine, cosine & tangent, building blocks of science & engineering. • Bell Ringer: pg 360 #10 • HW Requests: pg360 21- 26, 31, 36-38, 40, ADD 27, 29; Complete TIA Reading Across the Content • Bonus: #28 (15 minutes) • Homework: pg 368 #19-35 odds • FQ 1 Do trig ratios depend on the size of the right triangle? • FQ 2 What is SOH-CAH-TOA? • FQ 3 How are trig ratios used in navigation and construction? • Exit Ticket: pg. 367 #6, 7, 18, 22 • Announcements: Friday - Quiz 7.1-7.3

  5. 2/10/12 Sect. 7.4 Trigonometric (Trig) Ratios • Notes: SWBAT compute trigonometric ratios- sine, cosine & tangent, using right angles and they will solve problems using Trig Ratios • Trig Ratios - building blocks of science & engineering. • Bell Ringer: Quiz 7.1-7.3 (15 minutes) • HW Requests – pg 368 #19-35 • Homework: Worksheet 7.4 • Ex: pg 368 #13-15 • Exit Ticket: pg 367 #40-48 • Announcements:

  6. Special Right Triangles 2n 60 n n 30 45-45-90 Right Triangle n 30-60-90 Right Triangle Hypotenuse = 2n Short leg, opposite 30 = n Long leg, opposite  60 =

  7. Sin, Cos and Tan In any right triangle, for any angle: sine of angle = length of the opposite sideOPP                    length of the hypotenuse HYPcosine of angle = length of the adjacent sideADJ                       length of the hypotenuse HYP tangent of angle = length of the opposite sideOPP                            length of the adjacent side ADJShorthand notation: sin = o/h   cos = a/h   tan = o/aOften remembered by: sohcahtoa P h A adjacent P A Q A opposite P

  8. Trig Ratios For an To find trig ratio To find the Sin =Opp Sin-1 Opp = HypHyp Cos = Adj Cos-1 Adj = HypHyp Tan =Opp Tan-1 Opp = AdjAdj

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