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Up until now, you have only worked with right angle triangles. We will now look at ways to solve other triangles.
Activity 1: Discovering the Sine Law
Activity 1: Discovering the Sine Law
This activity uses the online software, GeoGebra. You will use the software to draw several triangles, leading to an important discovery of a relationship found in all triangles. This relationship is known as the sine law. Open the document to the right for instructions on activity 1.
Proof of the Sine Law
Proof of the Sine Law
Print off the attached page and watch the video of the proof of the sine law. Completed proof is also below.
Proof of the Sine LawCompleted Proof of the Sine LawActivity 2: The Ambiguous Case
Activity 2: The Ambiguous Case
This activity is a hands-on approach to help you understand that zero, one, or two triangles may be possible, depending on the measurements given. It is a great learning activity for both visual and kinesthetic learners. Open the document to the right for instructions on activity 2!
The Ambiguous Case
The Ambiguous Case
Watch the following video for a thorough explanation of the Ambiguous Case. This video will explain what the ambiguous case, and how to solve a problem when the ambiguous case occurs.
Checkpoint 1
Checkpoint 1
Congratulations! You have almost finished the first section of this unit. Complete the following Checkpoint on Quizizz before moving on to the Cosine Law.
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