Geometry

Chapter 9 Right Triangles & Trigonometry
Unit 9-1 Unit 9-2 Unit 9-3 Unit 9-4 Unit 9-5 Unit 9-6 Unit 9-7
Unit 9-1 The Pythagorean Theorem Agenda
  1. Finding the Hypotenuse of a Right Triange
  2. Common Pythagorean Triples
    • 3, 4, 5
    • 5, 12, 13
    • 8, 15, 17
    • Search for More Triples
  3. Acute and Obtuse Triangles
  4. Assignment 9-1: Part A Pg. 468 #4-12 Even, 13, 14-20 Even Part B #22-34 Even
Unit 9-2 Special Right Triangles Agenda
  1. 45-45-90 Triangles
    • Using Isosceles Triangle properties
  2. 30-60-90 Triangles
    • The side opposite the 30 degree angle is half the hypotenuse
  3. Assignment 9-2: Pg. 475 #4-10 Even, 14-17, 20
Unit 9-3 Similar Right Triangles Agenda
  2. Assignment 9-3: Pg. 482 #4-10 Even, 11-16, 19-24 All, 31, 32
Unit 9-4 The Tangent Ratio Agenda
  1. The tangent ratio: opposite/adjacent
  2. Tangents of special angles 30, 45, and 60 degrees
  3. Using Tangent to solve for missing sides
  4. Assignment 9-4: Pg. 491 #3-10, 15, 16, 27, 28, 29
Proving Lines Perpendicular & Parallel Activity Proving Lines Perpendicular & Parallel Activity Solutions
Unit 9-5 The Sine and Cosine Ratios Agenda
  1. The sine ratio: opposite/hypotenuse
  2. The cosine ratio: adjacent/hypotenuse
  3. sin A = cos (90 − A); cos A = sin(90 − A)
  4. Using Sine and Cosine to solve for missing sides
  5. Assignment 9-5: Pg. 498 #3-23, 27, 28
Unit 9-6 Solving Right Triangles Agenda
  1. Using sine, cosine, and tangent to solve for missing sides of right triangles
  2. Using inverse sine, inverse cosine, and inverse tangent to solve for missing angles of right triangles
  3. Assignment 9-6: Pg 505 #7-25
Unit 9-7 The Law of Sines & Law of Cosines Agenda
  1. Law of Sines
    • Law of Sines
  2. Law of Cosines
    • Law of Cosines
    • Law of Cosines
    • Law of Cosines
    • Law of Cosines
  3. Assignment 9-7: Part A Pg. 513 #9-18 Part B #19-36