The Ambiguous Case: Using the Sine Rule to Solve Triangles

The Ambiguous Case: Using the Sine Rule to Solve Triangles

Assessment

Interactive Video

Mathematics

University

Hard

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The video tutorial explores the ambiguous case in trigonometry, using the sine rule to solve problems with multiple solutions. It begins with a triangle problem, demonstrating how to find angles using the sine rule and identifying when two possible triangles exist. The tutorial then applies these concepts to a ship navigation scenario, calculating bearings and speeds. The importance of recognizing multiple triangle orientations is emphasized throughout.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the sine rule and how is it applied in the context of the ambiguous case?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the significance of the angle of 52 degrees in the context of the triangle discussed.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the two possible orientations of the triangle mentioned in the presentation.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

How do you determine the obtuse angle when given an acute angle in a triangle?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the implications of having two possible triangles with the same side lengths and angles?

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

In the example of ships leaving Port C, how is the bearing of Ship B determined?

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

What steps are involved in calculating the speed of Ship B after one hour?

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