Radius, Diameter and Circumference of Circles

The distance from any point on the outside of a circle to the center of the circle is called what?

• Diameter

• Circumference

• Area

• Radius

Tags

CCSS.HSG.CO.A.1

The distance across a circle through the center is called what?

• Area

• Diameter

• Circumference

• Radius

Tags

CCSS.HSG.C.A.2

The distance around the outside of a circle is called what?

• Perimeter

• Area

• Circumference

• Diameter

Tags

CCSS.7.G.B.4

If the radius of a circle is 4 inches, what is the diameter?

• 2 inches

• 2 feet

• 4 inches

• 8 inches

Tags

CCSS.7.G.B.4

What is the formula for the circumference of a circle?

• $2\pi d$

• $3.14\pi$

• $\pi r$

• $\pi d$

Tags

CCSS.7.G.B.4

What is the diameter of this circle?

• 6 m

• 6 cm

• 24 cm

• 24 m

Tags

CCSS.7.G.B.4

What is the Circumference of this circle? 

(Use 3.14 for  $\pi$  )

• 452.39 cm

• 452.16 cm

• 75.36 cm

• 75.40 cm

Tags

CCSS.7.G.B.4

If the diameter of a circle is 10 mm, the circumference is approximately ___

• 314 mm
• 3.14 mm
• 31.4 mm
• 20 mm

Tags

CCSS.7.G.B.4