Trigonometric Ratios of Acute Angles

 $\tan45\degree=$  

•  $\frac{\sqrt{3}}{3}$  

•  $\frac{\sqrt{2}}{2}$  

•  $\frac{\sqrt{3}}{2}$  

•  $1$  

Tags

CCSS.HSG.SRT.C.7

Find the exact value of   $\cos^245\degree+\sin^245\degree$   

•  $1$  

•  $2$  

•  $\frac{1}{\sqrt{2}}$  

•  $\sqrt{2}$  

Tags

CCSS.HSF.TF.C.8

Find the exact value of   $\cos\ 30\degree$   

•  $\frac{1}{2}$  

•  $\frac{\sqrt{3}}{2}$  

•  $\sqrt{3}$  

•  $\frac{1}{\sqrt{3}}$  

Tags

CCSS.HSF.TF.A.2

In the triangle, what is the value of y?

•   $3\sqrt{7}$  
  

•  $4\sqrt{2}$  
  

• 12

•  $\sqrt{2}$  
  

Tags

CCSS.HSG.SRT.C.8

What is the value of x?

• $6$

•  $2\sqrt{12}$ 

• $24$

•  $12\sqrt{3}$ 

Tags

CCSS.HSG.SRT.C.8

Which of the following is not the pair of angle $\theta$  and its corresponding reference angle,  $\alpha$  

•  $\theta=206\degree\ ,\ \alpha=26\degree$  

•  $\theta=337\degree,\ \alpha=23\degree$  

•  $\theta=112\degree,\ \alpha=68\degree$  

•  $\theta=195\degree,\ \alpha=75\degree$  

Tags

CCSS.4.G.A.1

What is the corresponding reference angle for 249°  ?

• 21°  

• 69°  

• 111°  

• 159°  

What is the exact value of  $\sin\ 60\degree$   

•  $\frac{1}{2}$  

•  $\frac{\sqrt{2}}{2}$  

•  $\frac{\sqrt{3}}{2}$  

•  $\sqrt{3}$  

Tags

CCSS.HSF.TF.A.2

The diagram below shows a unit circle. State the possible values of a and b.

• $a=0.9397,\ b=0.3420$

• $a=0.9397,\ b=-0.3420$

• $a=-0.9397,\ b=0.3420$

• $\alpha=-0.9397,\ b=-0.3420$

Tags

CCSS.HSF.TF.A.2

What is a complete circle in radians?

• π
• 2π
• 1/2 π
• 1

Tags

CCSS.HSF.TF.A.1