Unit 3 Test Review

Unit 3 Test Review

Trigonometry & Inverse Trig

Test on Wednesday 9/29

Labeling Opposite, Adjacent & Hypotenuse

Multiple Choice

The side labeled 9 is called the ________.

• Opposite

• Adjacent

• Hypotenuse

Multiple Choice

The side labeled x is called the ________.

• Opposite

• Adjacent

• Hypotenuse

Multiple Choice

We would write a _______ equation to solve this triangle for x.

• Sine

• Cosine

• Tangent

Multiple Choice

The side labeled 10 is called the ________.

• opposite

• adjacent

• hypotenuse

Multiple Choice

The side labeled x is called the ________.

• opposite

• adjacent

• hypotenuse

Multiple Choice

We would write a _______ equation to solve this triangle for x.

• Sine

• Cosine

• Tangent

Multiple Choice

The side labeled 2 is called the ________.

• opposite

• adjacent

• hypotenuse

Multiple Choice

The side labeled x is called the ________.

• opposite

• adjacent

• hypotenuse

Multiple Choice

We would write a _______ equation to solve this triangle for x.

• Sine

• Cosine

• Tangent

Regular Trigonometry is used to

Solve for a missing side!

Multiple Choice

Trigonometry: 

Which of the following is the correct setup to solve for AC?

• $$\cos\left(27\degree\right)=\frac{8}{AC}$$  

• $$\cos\left(27\degree\right)=\frac{AC}{8}$$  
  

• $$\sin\left(27\degree\right)=\frac{8}{AC}$$

• $$\sin\left(27\degree\right)=\frac{AC}{8}$$

Multiple Choice

Trigonometry:

 Solve the equation  $$\sin\left(27\degree\right)=\frac{8}{AC}$$  

Round to the nearest tenth.

• 3.6

• 9

• 17.6

• 7.1

• 0.6

Multiple Choice

Trigonometry: 

Which of the following is the correct setup to solve for x?

• $$\tan\left(43\degree\right)=\frac{12}{x}$$

• $$\tan\left(43\degree\right)=\frac{x}{12}$$

• $$\sin\left(43\degree\right)=\frac{12}{x}$$

• $$\sin\left(43\degree\right)=\frac{x}{12}$$

Multiple Choice

Trigonometry:

 Solve the equation  $$\tan\left(43\degree\right)=\frac{x}{12}$$  

Round to the nearest tenth.

• 11.2

• 12.9

• 0.28

• 0.9

Inverse^-1 Trigonometry is used to

Solve for a missing side!

Multiple Choice

Inverse Trigonometry: 

Solve for measure of  $$\angle A$$ . 

Round to the  nearest Degree.

• Type in $$\sin^{-1}\left(\frac{12}{27}\right)$$ to DESMOS and you get  $$26\degree$$  

• Type in $$\sin^{-1}\left(\frac{27}{12}\right)$$ to DESMOS and you get undefined.
  

• Type in $$\cos^{-1}\left(\frac{12}{27}\right)$$ to DESMOS to get  $$64\degree$$  

• Type in $$\cos^{-1}\left(\frac{27}{12}\right)$$ to DESMOS to get undefined.

Multiple Choice

Inverse Trigonometry: 

Solve for measure of  $$\angle B$$ . 

Round to the  nearest Degree.

• Type in $$\sin^{-1}\left(\frac{16}{36}\right)$$ to DESMOS and you get  $$26\degree$$  

• Type in $$\sin^{-1}\left(\frac{36}{16}\right)$$ to DESMOS and you get undefined.

• Type in $$\cos^{-1}\left(\frac{16}{36}\right)$$ to DESMOS to get  $$64\degree$$  

• Type in $$\tan^{-1}\left(\frac{16}{36}\right)$$ to DESMOS to get $$24\degree$$  .