How to use the law of sines to find the missing parts of a triangle

How to use the law of sines to find the missing parts of a triangle

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to solve a triangle problem using the Law of Sines. It begins by introducing the Law of Sines and its formula. The instructor then demonstrates how to find the length of side B by cross-multiplying and using given angle measures. Next, the video covers calculating angle A using the triangle angle sum property. Finally, the tutorial shows how to find the length of side A and verifies the results to ensure they are reasonable.

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3 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the significance of ensuring that the sum of angles in a triangle equals 180 degrees?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe how to set up a proportion using the Law of Sines to find an unknown side length.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

After calculating the side lengths and angles, how do you verify that your results are reasonable?

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