Welcome to Trigonometry Online
  • Home
  • Algbebra Review
    • Moving Graphs
    • Composing Functions
    • Quizzes
    • Discussion Post
    • Feedback Survey
  • Trig Functions
    • Intro to Trig Functions
    • Finding side lengths
    • Finding Angle Measures
    • Special Right Triangles
    • Quizzes
    • Discussion Post
    • Feedback Survey
  • Unit Circle
    • Angles and Degrees
    • Angles and Radians
    • Quizzes
    • Discussion Post
    • Feedback Survey
  • Transformations
    • Pre-Knowledge
    • Graphing Sin and Cos
    • Graphing Sec and Csc
    • Graphing Tan and Cot
    • Real World Application
    • Quizzes
    • Test
    • Discussion Post
    • Feedback Survey
  • Identities
    • Pre-Knowledge
    • Pythagorean Identities
    • Odd & Even
    • Sum & Difference
    • Quizzes
    • Feedback Survey
  • Equations
    • Half Angle
    • Double Angle
    • Solving
    • Quizzes
    • Feedback Survey
  • Law of Sin & Cos
    • Law of Sines
    • Law of Cosine
    • Solving Triangles
    • Area of Trigangles
    • Quizzes
    • Feedback Survey
  • Contact

Objective

To apply and use the law of sin or law of cos formulas to solve triangles for side lengths and angle measures.
To be able to know when to use the law of sin and the law of cos correctly.

Web Resources

http://www.regentsprep.org/Regents/math/algtrig/ATT12/ambiguouspractice.htm        Practice Problems with Solutions

http://www.themathpage.com/atrig/law-of-sines.htm        Notes with examples and practice problems with detailed explanations

http://www.mathportal.org/calculators/plane-geometry-calculators/sine-cosine-law-calculator.php
        Calculator for Law of Sin and Law of Cos


Lesson Videos

Pay Attention to the Following:

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