Area and Perimeter

Area and Perimeter

Circles, Sectors, and Segments

Circles

Area and Circumference

Open Ended

 $A=\pi r^2$  can be used to find the area of which plane figure?

Multiple Select

Which of the following is true about  $\pi$  

 SELECT ALL THAT APPLY

• it is an irrational number

• it is equal to 22/7

• it is equal to 3.14

• it is a non-recurring decimal with never-ending digits

Multiple Choice

What is the area of the minor sector where the radius is 4cm and the sector angle is 88 degrees?

• 3.07cm²

• 6.14cm²

• 12.3cm²

• 24.6cm²

Multiple Choice

Which of the following terms best describes the area in the diagram that is shaded BLUE?

• minor sector

• major arc

• major sector

• major segment

Fill in the Blanks

Multiple Choice

What is the area of the segment if the radius is 6 units?

• 7.7

• 10.3

• 77.1

• 95.1

Multiple Choice

What is the perimeter of the image given that the sector angle is 60 degrees and the radius is 4cm?

• 4.2cm²

• 8.2cm²

• 12.2cm²

• 64cm²

Multiple Choice

All of the following formulas can be used to find the length of an arc EXCEPT:

• $l=\frac{\theta}{360}2\pi r$

• $l=\frac{\theta}{360}\pi d$

• $l=\frac{\theta}{360}C$

• $l=\frac{\theta}{360}\pi r^2$

Multiple Choice

All of the following are true about the parts of the circle EXCEPT:

• The radius is twice the length of the diameter

• The area of the segment + area of triangle = area of sector

• Two radii of the same circle will be equal in length

• An arc is a fraction of the circumference and a sector is a fraction of the area.