Finding the Degree Measure of an Angle When Given the Trig Value

Finding the Degree Measure of an Angle When Given the Trig Value

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to find the degree of an angle when the sine of the angle equals 1/2. It emphasizes the importance of memorizing key angles (30, 45, and 60 degrees) and their coordinates on the unit circle. The tutorial guides students on how to determine the angle using the Y coordinate, specifically when it is 1/2, leading to the conclusion that the angle is 30 degrees.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the problem introduced in the video regarding angles?

Finding the angle whose cosine is 1/2

Finding the angle whose cotangent is 1/2

Finding the angle whose sine is 1/2

Finding the angle whose tangent is 1/2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which angles are highlighted as important to memorize in the video?

45, 60, and 90 degrees

15, 45, and 75 degrees

30, 60, and 90 degrees

30, 45, and 60 degrees

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the sine value for a 30-degree angle?

Square root of 3 over 2

1

1/2

Square root of 2 over 2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the cosine value for a 60-degree angle?

Square root of 2 over 2

Square root of 3 over 2

1/2

1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For which angle is the sine value 1/2?

45 degrees

60 degrees

30 degrees

90 degrees