Circumference and Composite Perimeter

what is the circumference of this circle ?

• 3.14 cm 

• 37.68 cm

• 24 cm

• 68.4 cm

Find the circumference of the circle.

• 14.13 cm

• 63.56 cm

• 28.26 cm

• 127.17 cm

Find the perimeter of the figure.

• 56 m

• 42 m

• 37 m

• 68 m

What is the formula for circumference of a circle given the diameter?

• C = π(1/2 d)²

• C = 2πr

• C = πd

• C = πr²

The radius of the circle is 9 meters.  What is the circle's circumference? Use 3.14 for pi.

• 9 meters

• 28.26 meters

• 56.52 meters

• 18 meters

Serena drew a circle with a circumference of 157 centimeters.  What is the approximate diameter of the circle she drew?

• 57 cm

• 15.7 cm

• 50 cm

• 25 cm

The circumference of a bicycle wheel is 50.24 in. What is the diameter?

• 8

• 22

• 157.75

• 16

You have a circular dog bed with a circumference of 15.7 feet. Will this dog bed fit inside a dog crate that is 4 feet by 4 feet? If not, by how many feet is it too wide?

• No. It is too wide by 5 feet.

• No. It is too wide by 2 feet.

• No. It is too wide by 1 foot.

• Yes, it will fit.

Is the highlighted side part of the perimeter?

• Yes

• No

Find the perimeter of the figure

• 18 in.

• 20 in.

• 40 in.

• 25 in.