Circumference Radius of a Circle

• Diameter / Circumference

• Circumference / Radius

• Radius / Circumfrence

• Circumference / Diameter

Tags

CCSS.7.G.B.4

The diameter is exactly...

• Half the radius

• Half the circumference

• Twice the radius

• Twice the circumference

Tags

CCSS.HSG.C.A.2

The radius is exactly...

• Half the diameter

• Half the circumference

• Twice the circumference

• Twice the diameter

Tags

CCSS.HSG.C.A.2

The formula for Circumference is...

• 2πr

• πr²

• πd

• ¹/₂ Bh

Tags

CCSS.7.G.B.4

• 43.96 cm

• 21.98 cm

• 14.0 cm

• 28.0 cm

Tags

CCSS.7.G.B.4

• 31.4 cm

• 15.7 cm

• 62.8 cm

• 20.0 cm

Tags

CCSS.7.G.B.4

• 21.98 cm

• 43.96 cm

• 44 cm

• 88 cm

Tags

CCSS.7.G.B.4

What is the circumference?

• 36

• 18pi

• 108pi

• 36pi

Tags

CCSS.7.G.B.4

Daniel wants to buy cookies for her friend. The
radius of a cookie is 5 inches. What is the cookie’s 
circumference?   Use C=2πr
Pi = 3.14

• 10 in

• 2.5 in

• 15.7 in

• 31.4 in 

Tags

CCSS.7.G.B.4

What is the area of a circle with a radius of 3?
Use A=πr²

• 9π

• 5π

• 91π

• 34π

Tags

CCSS.7.G.B.4