CIRCULAR MEASURES

The correct method to convert  $56^{\degree}$  to radian is.........

•  $56+\frac{180}{\pi}$  

•  $56\times\frac{180}{\pi}$  

•  $56\times\frac{\pi}{180}$  

•  $56+\frac{\pi}{180}$  

Convert  $145.6\degree$  to radian is

• 25.4 rad

• 12.54 rad

• 2.54 rad

• 0.254 rad

Find the arc length (s)  if given that r = 8 cm and  $\theta=0.45\ rad$  

• 3.6 cm

• 13.6 cm

• 28.8 cm

• 36 cm

Which of the following figure is refering to area of sector?

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The correct way to conver 5.6 rad to degree is......

• $5.6\times\frac{180}{\pi}$

• $5.6\times\frac{\pi}{180}$

• $5.6\div\frac{180}{\pi}$

• $5.6\div\frac{\pi}{180}$

Convert  $\frac{\pi}{2}$  rad to degree .

•  $270\degree$  

•  $180\degree$  

•  $45\degree$  

•  $90\degree$  

Find the value of  $\theta$  in radian if given that  s = 12.5 cm add r = 6 cm

• 0.083 rad

• 2.083 rad

• 12.83 rad

• 2.038 rad

Calculate the area of segment for the following diagram.

• $1.98\ cm^2$

• $11.98\ cm^2$

• $19.82\ cm^2$

• $1.198\ cm^2$

Given area of the sector $POQ=25\ cm^2$  . Find the angle of POQ in radian.

• 3.125 rad

• 12.35 rad

• 13.125 rad

• 31.25 rad

Which of the following equations is correct for the relationship between degree and radian?

• $180\degree=\frac{1}{2}\pi\ \ rad$

• $180\degree=2\pi\ \ rad$

• $360\degree=2\pi\ rad$

• $360\degree=\pi\ \ rad$