4.1 Review

Which quadrant?

 $124\degree$  

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Which quadrant? $\frac{11\pi}{6}$  

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Which angles are coterminal with  $200\degree?$  

Select all that apply.

•  $560\degree$  

•  $-160\degree$  

•  $-520\degree$  

•  $-560\degree$  

What is the complement of $75\degree?$  

•  $15\degree$  

•  $105\degree$  

•  $-15\degree$  

• Does not exist

What is the supplement of $\frac{7\pi}{10}?$  

•  $\frac{3\pi}{10}$  

•  $\frac{2\pi}{5}$  

•  $\frac{\pi}{5}$  

• Does not exist

Which quadrant?

 $-\frac{5\pi}{4}$  

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Which is the formula for arc length?

• $S=2\pi r$

• $S=r\theta$

• $S=r^2\theta$

• $S=\frac{1}{2}r^2\theta$

Find the area of a sector with a radius of 3 inches and an arc length of $60\degree$  .

•  $\frac{3\pi}{2}\ in.^2$  

•  $270\ in.^2$  

•  $\frac{\pi}{2}in^2$  

•  $\pi\ in.^2$  

 $52\degree36'54"\ =$  Round to three decimal places.

(You do not need to put the degree sign in your answer.

 $186.2227\degree\ =\$  

186.2227

•  $186\degree13'21.72"$  

•  $1\degree86"2227'$  

•  $186\degree22'27"$  

•  $18\degree22'27"$