Angles Practice

What is the exact value of  $\sin\left(\pi\right)$  

• 1

• 0

• -1

•  $\frac{\sqrt{2}}{2}$  

What is the reference angle of  $205\degree$  ?

•  $65\degree$  

•  $5\degree$  

•  $25\degree$  

•  $45\degree$  

Which angles are NOT co-terminal?

•  $\frac{\pi}{3},\ \frac{13\pi}{3}$  

•  $\frac{4\pi}{5},\ \frac{-6\pi}{5}$  

•  $\frac{3\pi}{4},\ \frac{11\pi}{4}$  

•  $\frac{\pi}{6},\ \frac{12\pi}{6}$  

Which is true for an angle of  $150\degree$  ?

•  $s=\frac{\sqrt{3}}{2},\ \ c\ =\ \frac{1}{2},\ \ t=\ \frac{\sqrt{3}}{3}$  

•  $s=\frac{\sqrt{3}}{2},\ \ c\ =\ \frac{-1}{2},\ \ t=\ \frac{-\sqrt{3}}{3}$  

•  $s=\frac{1}{2},\ \ c\ =\ \frac{-\sqrt{3}}{2},\ \ t=\ \frac{-\sqrt{3}}{3}$  

•  $s=\frac{1}{2},\ \ c=\ \frac{-\sqrt{3}}{2},\ \ t=\ -\sqrt{3}$  

What angle measure is shown?

• $50\degree$

• $230\degree$

• $-130\degree$

• $-230\degree$

What is the reference angle for  $-195\degree$  ?

•  $-15\degree$  

•  $15\degree$  

•  $75\degree$  

•  $-75\degree$  

What is the reference angle?

• $10\degree$

• $100\degree$

• $90\degree$

• $80\degree$