MATH 166 - Easy questions

What is the length of the hypotenuse?

• 16
• 30
• 34

What is the ratio for Sine?

• Hyp/Opp
• Opp/Hyp
• Opp/Adj
• Adj/Opp

What is the ratio for Tangent

• Opp/Adj

• Adj/Opp

• Opp/Hyp

• Hyp/Opp

What is the ratio for Cosine?

• Opp/Hyp
• Opp/Adj
• Adj/Opp
• Adj/Hyp

If A denotes the area of the sector of a circle of radius r = 18 inches formed by the central angle  $\theta=\frac{\pi}{6}$  

which of the following statement are true

•  $A=84.78in^2$  

•  $A=169.56in^2$  

•  $\theta=60$  

•  $\theta=30$  

• arc-length is $L=3\pi$  

If A denotes the area of the sector of a circle of radius r = 12 inches formed by the central angle  $\theta=45\degree$  

which of the following statement are true

•  $A=56.55in^2$  

•  $A=113.04in^2$  

•  $\theta=\frac{\pi}{3}$  

•  $\theta=\frac{\pi}{4}$  

• arc-length is $L=3\pi$  

Convert the angle in degrees to radians.

which of the following statement are true

• $405\degree=\frac{\pi}{4}$

• $405\degree=\frac{9\pi}{4}$

• $45\degree=\frac{\pi}{4}$

• $30=\frac{\pi}{6}$
  

• $390=\frac{\pi}{6}$
  

 $\frac{2\pi}{3}$  

Draw the angle

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Choose the figure that shows an angle of $-\frac{5\pi}{6}$   radians in standard position.

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Choose the figure that shows an angle of $\frac{7\pi}{2}$   radians in standard position.

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