Circle's Diameter and Circumference

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

• 314 mm

• 3.14 mm

• 31.4 mm

• 20 mm

The diameter of a circle is 3 centimeters. What is the circumference?

• 11.5cm2

• 9.42 cm2

• unicorns are awsome

• 45.3 cm2

The circumference of a circle is

• The measurement from an edge of a circle to another edge.

• The measurement around the circle

• The measurement from an edge of a circle to another edge going through the center

• The measurement from the center of the circle to an edge of the circle

What is the diameter of this circle?

• 3.5

• 3

• 5

• 7

What is the diameter?

• 5 in

• 10 in

• 3.14 in

• 15.84 in

The radius of a circle is 6.5 inches.

Find the circumference of the circle.

• 132.7 in

• 40.8 in

• 20.4 in

• 572.3 in

What is the diameter?

• 8

• 16

• 10

• 4

Steven purchases a bowl. The diameter of the
bowl is 14 cm. What is the circumference of the 
bowl?

• 28 cm

• 43.98 cm

• 87.96 cm

• 7 cm

If my diameter is 90cm, what is my circumference?

• 282.6cm

• 180 cm

• 90cm

• 565.2cm

Is the red line a radius or diameter of the circle?

• Radius

• Diameter