Circumference

Find the circumference of the circle.

• 18.8 cm

• 113 cm

• 37.7 cm

• 452.2 cm

Tags

CCSS.7.G.B.4

What is the formula for finding the circumference of a circle?

• C = r²

• C = rd

• A = π·r²

• C = π·d

Tags

CCSS.7.G.B.4

What two formulas can you use to find the circumference?

• C = π·d

• C = π·r²

• C = 2·π·r

• C = d²

Tags

CCSS.7.G.B.4

What does C represent in the formula: C = π·d

• Pi

• Circumference

• Diameter

• Area

Tags

CCSS.7.G.B.4

What is the circumference of this circle?

• 8.1 m

• 15.7 m

• 10.0 m

• 31.4 m

Tags

CCSS.7.G.B.4

A cruise ship has a large, circular window. It has a diameter of 6 meters. What is the window's perimeter? (Use 3.14 for pi.)

• 21.25 m²

• 19.55 m²

• 15.36 m²

• 18.84 m

Tags

CCSS.7.G.B.4

What is the circumference of this circle?  Round to the nearest tenth.

• 3.14 cm 

• 37.7 cm

• 24 cm

• 68.4 cm

Tags

CCSS.7.G.B.4

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

• 9 meters

• 28.26 meters

• 56.52 meters

• 18 meters

Tags

CCSS.7.G.B.4

Find the circumference of the circle

• 87.82

• 153.86

• 43.96

• 307.72

Tags

CCSS.7.G.B.4

The radius of a cookie is 5 inches. What is the cookie’s

circumference?

• 10 in

• 2.5 in

• 15.7 in

• 31.4 in

Tags

CCSS.7.G.B.4