Circles and Circumference

Does this picture show the diameter or radius of a circle?

• Diameter
• Radius

Tags

CCSS.7.G.B.4

Does this picture show the diameter or radius of a circle?

• Diameter

• Radius

Tags

CCSS.5.G.B.3

CCSS.5.G.B.4

What is the radius of this circle?

• 12cm
• 6cm
• 24cm
• 3cm

Tags

CCSS.7.G.B.4

If you are given the diameter, how can you calculate the radius?

• Multiply the diameter by 2
• Divide the diameter by 2
• Add 2 to the diameter
• Subtract 2 from the diameter

Tags

CCSS.7.G.B.4

What does "circumference" mean?

• Space a circle takes up
• Distance around a circle
• Line from one side of a circle to another
• Line from center of circle to side

Tags

CCSS.7.G.B.4

Find the circumference of a circle with a diameter of 11 millimeters. 

Use the formula C= $\pi$ d.

• 34.6 mm

• 30 mm

• 25.3 mm

• 34.54 cm

What is the circumference of this circle?

Use the formula C= π d.

• 3.14 cm

• 37.7 cm

• 24 cm

• 68.4 cm

Find the circumference (to the nearest whole number.

Use the formula C= π d.

• 88 in

• 44 in

• 116 square in

• None of the above