Parts of a circle

1. 1.
   What is the name of the marked part of the circle?
   a)Circumferenceb)Diameterc)Radiusd)Centre
2. 2.
   A circle has a diameter of 18 cm. What is its radius, in cm?
3. 3.
   What is the name of the marked part of the circle?
   a)Centreb)Circumferencec)Diameterd)Radius
4. 4.
   A circle has a radius of 11 cm. What is its diameter, in cm?
5. 5.
   A circle has a diameter of 22 cm. What is its radius, in cm?
6. 6.
   A circle has a radius of 4 cm. What is its diameter, in cm?
7. 7.
   A circle has a radius of 9 cm. What is its diameter, in cm?
8. 8.
   What is the name of the marked part of the circle?
   a)Circumferenceb)Radiusc)Diameterd)Centre
9. 9.
   What is the name of the marked part of the circle?
   a)Circumferenceb)Centrec)Radiusd)Diameter
10. 10.
    A circle has a radius of 13 cm. What is its diameter, in cm?
11. 11.
    A circle has a radius of 10 cm. What is its diameter, in cm?
12. 12.
    A circle has a radius of 14 cm. What is its diameter, in cm?
13. 13.
    A circle has a diameter of 10 cm. What is its radius, in cm?
14. 14.
    A circle has a radius of 8 cm. What is its diameter, in cm?
15. 15.
    A circle has a diameter of 20 cm. What is its radius, in cm?
16. 16.
    A circle has a diameter of 26 cm. What is its radius, in cm?
17. 17.
    A circle has a diameter of 4 cm. What is its radius, in cm?
18. 18.
    A circle has a radius of 12 cm. What is its diameter, in cm?
19. 19.
    A circle has a diameter of 30 cm. What is its radius, in cm?
20. 20.
    A circle has a radius of 2 cm. What is its diameter, in cm?

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