Circumference Using Pi

The radius of the circle is 9 meters. What is the circle's circumference? Use 3 for pi and choose the answer that is the closest.

• 9 meters

• 28.26 meters

• 56.52 meters

• 18 meters

Tags

CCSS.7.G.B.4

Find the circumference with a radius of 10 cm. Use 3 for pi and choose the answer that is the closest.

• 68.4 cm

• 62.8 cm

• 65.3 cm

• 72.2 cm

Tags

CCSS.7.G.B.4

To find pi we divide:

• Diameter/Circumference

• Circumference/Diameter

• Circumference/Radius

• Circumference/Radius

Tags

CCSS.7.G.B.4

• 3 m 

• 9.42 m

• 12 m

• 18.84 m

Tags

CCSS.7.G.B.4

Tags

CCSS.7.G.B.4

Calculate the circumference of a circle with a radius of 12cm. Use \pi=\frac{22}{7}. Write your answe in 2 decimal places.

Tags

CCSS.7.G.B.4

A ball fits exactly into a square box as shown in the diagram. If the length of the box is 21cm, find the circumference of the circle. Use π = 3.142. Write your answer in 2 decimal places.

Tags

CCSS.7.G.B.4

Tags

CCSS.7.G.B.4

Tags

CCSS.7.G.B.4

Tags

CCSS.7.G.B.4