Trigonometry : Finding Sides

Study concepts, example questions & explanations for Trigonometry

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Example Questions

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Example Question #371 : Trigonometry

Find the length of side .

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Possible Answers:

Correct answer:

Explanation:

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Recall the Law of Sines:

Plug in the given values into the Law of Sines:

Rearrange the equation to solve for :

Make sure to round to two places after the decimal.

Example Question #11 : Finding Sides

Find the length of side .

4

Possible Answers:

Correct answer:

Explanation:

13

Recall the Law of Sines:

Plug in the given values into the Law of Sines:

Rearrange the equation to solve for :

Make sure to round to two places after the decimal.

Example Question #11 : Finding Sides

Find the length of side .

11

Possible Answers:

Correct answer:

Explanation:

13

Recall the Law of Sines:

Start by finding the value of angle :

Plug in the given values into the Law of Sines:

Rearrange the equation to solve for :

Make sure to round to two places after the decimal.

Example Question #11 : Finding Sides

If  is between  and  degrees, and   , what is   ?

Possible Answers:

Correct answer:

Explanation:

Solution 

Using Pythagoras theory, you can see that  is . If  is , than  is , because  is 

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