Circles Perimeter

Find the circumference of the circle.

• 31.4 cm

• 78.5 cm

• 314 cm

• 15.7 cm

Find the circumference of the circle (to 2 decimal places)

The radius of the circle is 9 meters.  What is the circle's circumference?

(to 2 decimal places)

How many cookies are there?

• 48 cookies

• 24 cookies

• 8 cookies

• 4 cookies

The perimeter of square circumscribing circle of radius 'a' cm is

• 8a cm

• 6a cm

• 10a cm

• 16a cm

Find the perimeter of this sector.

• 61.42 cm

• 15.71cm

• 282.74cm

• 31.42 cm

Find the perimeter of this sector?

(give your answer to 1 decimal place)

• 21.4 cm

• 9.4 cm

• 4.7 cm

• 18.8 cm

Find the perimeter of this sector?

(give your answer to 1 decimal place)

The perimeter of a circle is called the _________

• Radius

• Diameter

• Circumference

• Area

• 37.68 in

• 24.48 in

• 12 in

• 144 in