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Geometry worksheet in which students develop and prove the Law of Sines, and complete proportions based on the Law of Sines.

Activity 3.8​

Assignment 3.9

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​Assignment 7.20

​The Law of Sines 

 
Objective
Develop and apply the Law of Sines for finding side lengths and angle measures in triangles.
End of Unit
Geometry worksheet in which students apply the Law of Sines to calculate lengths of sides and angle measures in triangles.

About Geometry Worksheet Assignment 7.20:     

 

Assignment 7.20 is the development of the Law of Sines and practice in its application.

 

Prerequisite Skills:  Write and solve trigonometric equations (Assignment 7.15).  Write and solve inverse trigonometric equations (Assignment 7.17).  Solve proportions using cross-produts (Assignment 6.2).

 

Theorem:   In a triangle, the ratios of the sines of the angles to the lengths of the opposite sides are equal.

                        

                        Law of Sines       sin A  -  sin B  = sin C

                                                        a            b          c

                                             

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