Circumferences of a Circle

What is the circumference of a circle with the diameter of 12 in?

• 37.68

• 65.32

• 86.73

• 45.12

What is the circumference of a circle with the radius of 4 ft?

• 61.2

• 25.12

• 89.34

• 45.32

What is the circumference of a circle with the diameter of 6.23 ft?

• 19.5622

• 15.2648

• 61.2645

• 8.1542

What is the circumference of the circle with a diameter of 13.9 in?

• 41.6460

• 53.642

• 195.3

• 3.561

What is the circumference of a circle with the diameter of 11.2 yd?

(a)