Video: Solving Triangles Todays Live Lesson with Solution to Question from class
Trigonometry 1 Section 5: The Cosine Rule
Today's we are continuing onto section 5 The Cosine Rule which is used to solve non-right angled triangles. We use the cosine rule if the information we have/want includes all three sides and one of the angles. You are asked to look at the tutorial video and answer questions from this section. Please ask if you require help.
Trigonometry 1 Section 4: The Sine Rule
The Sine Rule was on the JC HL course. The examples below will remind you of its application. The ambiguous case of the sine rule is new in example 3. Before you watch this video or try the question in the video play with the attached GeoGebra file.
Finding a side
Finding an angle
Ambiguous Case of the Sine Rule
Interactive Geogebra File: Ambiguous Case of the Sine Rule
Trigonometry 1 Section 3 Surd Ratios
Trigonometry 1 Section 2 Trigonometric Ratios
Today's work is to look at question from Trigonometry 1 Section 2
Tutorial videos below