Add Maths 5B Chapter 1 Circular Measure

žAngles, θ can be measured in the units of _____ and _____.

• degree  $\theta^{\degree}$  

• radian $\theta\ \ rad$  

• meter

• centimeter

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

What is the area of the shaded region? Round to the nearest hundredth.

• 50.27
• 3015.93
• 8.38
• 4.19

Find the area of sector for the given diagram.

• $8.64\ cm^2$

• $86.4\ cm^2$

• $86.04\ cm^2$

• $8.604\ cm^2$

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

• $180\degree=\frac{1}{2}\pi\ \ rad$

• $180\degree=2\pi\ \ rad$

• $360\degree=2\pi\ rad$

• $360\degree=\pi\ \ rad$

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

Find the area of the shaded sector of the circle.

• 
• 
• 
• 

Tags

CCSS.HSG.C.B.5