Area Radius Diameter Circumference

Find the length of the radius. Only type the number.

What is the circumference of this circle?

• 3.14 cm 

• 37.7 cm

• 24 cm

• 68.4 cm

Find the circumference of the circle.

• 38.47 cm

• 10.99 cm

• 43.96 cm

• 21.98 cm

How much fencing is required to enclose a circular garden whose radius is 19 m? Use 3.14 for pi. Only type the number for your answer.

If the area of a circle is 201.06 cm², find its diameter and circumference round to the nearest tenth.

Diameter=​ (a)   Circumference=​ (b)  

• 16

• 50.3

• 19.3

• 12.6

• 14.2

• 46.4

• 54.1

Sally has car tire with a circumference of 75.36 ft. What is the radius of the car tire and what is the diameter? (Use 3.14 for pi)

• r=12 ft

• d=26 ft

• r=13 ft

• d=24 ft

If my circumference is 37.68cm, what is my diameter?

• 12 cm

• 118.3152 cm

• 6 cm

• 37.68 cm

Find the area of this circle. Use 3.14 for pi. Only type the number.

Name all of the radii

• JC, KC, KH, HC

• JO, KO, CO, HO

• JC, KO, KH, HO

• JK, KC, CH, HJ

Name the diameter.

• JO

• GO

• QG

• JG