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Acute Angles and Right Triangles: Trigonometric Functions and Applications

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Trigonometric Functions on Right Triangles

  • How to Use a Calculator for Trig Functions
    4:45
  • Example 1
    1:37
  • Introduction to Trigonometric Functions
    6:04

Cofunctions of Complementary Angles

  • Using Cofunction Identities to Solve Equations
    4:42
  • Cofunction Identities
    6:30

Special Right Triangles

  • Common Trig Functions For 45-45-90 Triangles
    3:28
  • 30-60-90 Triangles
    5:35
  • 45-45-90 Triangles
    04:39

Solving Right Triangles

  • Finding Missing Angles
    5:13
  • Example 1
    4:56
  • Example 2
    3:22

Pythagorean Theorem & Basics of Triangles

  • Guided course
    Review of Triangles
    4:42
  • Guided course
    Solving Right Triangles with the Pythagorean Theorem
    5:19

Angles in Standard Position

  • Guided course
    Example 1
    3:59
  • Guided course
    Drawing Angles in Standard Position
    05:50

Coterminal Angles

  • Coterminal Angles
    04:46
  • Guided course
    Example 1
    3:51

Reference Angles

  • Trig Values in Quadrants II, III, & IV
    5:30
  • Reference Angles on the Unit Circle
    5:31
  • Coterminal Angles on the Unit Circle
    3:47

Basics of Graphing

  • Guided course
    Graphing Intercepts
    4:08
  • Guided course
    Example 1
    2:16
  • Guided course
    Introduction to Graphs & the Coordinate System
    5:10