How to apply the law of sines to find the remaining parts of a triangle

How to apply the law of sines to find the remaining parts of a triangle

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

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The video tutorial explains how to solve a triangle problem using the Law of Sines. It begins with an introduction to the problem and the conditions under which the Law of Sines can be applied. The tutorial then demonstrates how to apply the Law of Sines to find missing side lengths and angles, using proportions and calculations. The lesson concludes with a summary and encouragement for students to practice solving similar problems.

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7 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary mathematical tool introduced to solve for the unknowns in the triangle?

Trigonometric Identities

Law of Cosines

Law of Sines

Pythagorean Theorem

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a condition where the Law of Sines can be applied?

Angle-Side-Angle (ASA)

Side-Side-Side (SSS)

Side-Angle-Side (SAS)

Angle-Angle-Angle (AAA)

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the ambiguous case mentioned that will be discussed in the next class?

Side-Side-Angle (SSA)

Side-Side-Side (SSS)

Angle-Side-Angle (ASA)

Angle-Angle-Side (AAS)

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you solve for a missing side length using the Law of Sines?

Set up a proportion and cross-multiply

Use the Pythagorean theorem

Use trigonometric identities

Apply the Law of Cosines

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the calculated length of side B in the triangle?

12.8558

13.3096

11.8762

14.5000

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you find the missing angle in a triangle if two angles are known?

Use the Law of Cosines

Subtract the sum of the known angles from 180 degrees

Use the Pythagorean theorem

Divide the known angles by 2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final calculated value of side A in the triangle?

14.0000

11.8762

13.3096

12.8558