FMath 11

Which letter best represents a bearing of   $110\degree$  ?

• A

• B

• C

• D

Which letter best represents a bearing of  $260\degree$  ?

• A

• B

• C

• D

 $N30\degree E$  is a direction represented by which letter?

• A

• B

• C

• D

 $S60\degree W$  is a direction; as a bearing, this direction would be:

•  $30\degree$  

•  $120\degree$  

•  $210\degree$  

•  $240\degree$  

 $\angle BAC=40\degree$ 
What is the bearing, then, from A to B?

•  $40\degree$  

•  $50\degree$  

•  $80\degree$  

•  $90\degree$  

 To find $\angle R$ , which of these would you need to use?

• SOH CAH TOA

• Pythagorean Theorem

• Sine Law

• Cosine Law

To find side c, which equation should be used?

• $\frac{\sin105\degree}{c}=\frac{\sin35\degree}{7}$

• $\frac{\sin105\degree}{35\degree}=\frac{\sin7\degree}{c}$

• $c^2=7^2+35^2-\left(2\times7\times35\times\cos105\degree\right)$

• $\cos c=\frac{\left(7^2+35^2-105^2\right)}{\left(2\times7\times35\right)}$

The angle of elevation from the person's foot to the top of the flag pole is:

•  $48\degree$  

•  $54\degree$  

•  $6\degree$  

•  $102\degree$  

Let's assume the building is built straight, so that $\angle ABC=90\degree$ .  Which of the following methods would NOT help to find side length AC in one step?

• Pythagorean Theorem 

•  $\sin A=\frac{\left(opposite\right)}{\left(hypotenuse\right)}$  

•  $\cos A=\frac{\left(adjacent\right)}{\left(hypotenuse\right)}$  

•  $\tan A=\frac{\left(opposite\right)}{\left(adjacent\right)}$  

What is the plane's angle of depression to point B?

• $24\degree$

• $32\degree$

• $56\degree$

• $58\degree$