Areas Related to Circles MCQ Quiz

30 questions

1. Using π=22/7 where applicable, the area of a sector of radius 7 cm and angle 90° is:

   1. 57.73
   2. 19.24
   3. 38.5
   4. 49

2. The area of a full circle of radius 7 cm is:

   1. 21.99
   2. 43.98
   3. 153.94
   4. 49

3. The central angle of a semicircle is:

   1. 90
   2. 270
   3. 360
   4. 180

4. Using π=22/7 where applicable, the area of a sector of radius 14 cm and angle 90° is:

   1. 230.91
   2. 76.97
   3. 154
   4. 196

5. The area of a full circle of radius 14 cm is:

   1. 43.98
   2. 87.96
   3. 196
   4. 615.75

6. The central angle of a semicircle is:

   1. 90
   2. 270
   3. 180
   4. 360

7. Using π=22/7 where applicable, the area of a sector of radius 7 cm and angle 180° is:

   1. 115.45
   2. 38.48
   3. 77
   4. 49

8. The area of a full circle of radius 7 cm is:

   1. 153.94
   2. 21.99
   3. 43.98
   4. 49

9. The central angle of a semicircle is:

   1. 90
   2. 270
   3. 360
   4. 180

10. Using π=22/7 where applicable, the area of a sector of radius 14 cm and angle 180° is:

    1. 461.81
    2. 308
    3. 153.94
    4. 196

11. The area of a full circle of radius 14 cm is:

    1. 615.75
    2. 43.98
    3. 87.96
    4. 196

12. The central angle of a semicircle is:

    1. 90
    2. 270
    3. 360
    4. 180

13. Using π=22/7 where applicable, the area of a sector of radius 21 cm and angle 60° is:

    1. 346.36
    2. 115.45
    3. 231
    4. 441

14. The area of a full circle of radius 21 cm is:

    1. 65.97
    2. 131.95
    3. 1385.44
    4. 441

15. The central angle of a semicircle is:

    1. 90
    2. 270
    3. 360
    4. 180

16. Using π=22/7 where applicable, the area of a sector of radius 7 cm and angle 120° is:

    1. 76.97
    2. 51.33
    3. 25.66
    4. 49

17. The area of a full circle of radius 7 cm is:

    1. 21.99
    2. 43.98
    3. 153.94
    4. 49

18. The central angle of a semicircle is:

    1. 90
    2. 270
    3. 180
    4. 360

19. Using π=22/7 where applicable, the area of a sector of radius 14 cm and angle 60° is:

    1. 153.94
    2. 51.31
    3. 196
    4. 102.67

20. The area of a full circle of radius 14 cm is:

    1. 43.98
    2. 87.96
    3. 615.75
    4. 196

21. The central angle of a semicircle is:

    1. 90
    2. 180
    3. 270
    4. 360

22. Using π=22/7 where applicable, the area of a sector of radius 21 cm and angle 90° is:

    1. 346.5
    2. 519.54
    3. 173.18
    4. 441

23. The area of a full circle of radius 21 cm is:

    1. 65.97
    2. 131.95
    3. 441
    4. 1385.44

24. The central angle of a semicircle is:

    1. 180
    2. 90
    3. 270
    4. 360

25. Using π=22/7 where applicable, the area of a sector of radius 10 cm and angle 180° is:

    1. 235.62
    2. 78.54
    3. 180π×100/360
    4. 100

26. The area of a full circle of radius 10 cm is:

    1. 31.42
    2. 62.83
    3. 100
    4. 314.16

27. The central angle of a semicircle is:

    1. 180
    2. 90
    3. 270
    4. 360

28. Using π=22/7 where applicable, the area of a sector of radius 28 cm and angle 45° is:

    1. 461.81
    2. 153.94
    3. 308
    4. 784

29. The area of a full circle of radius 28 cm is:

    1. 87.96
    2. 175.93
    3. 784
    4. 2463.01

30. The central angle of a semicircle is:

    1. 90
    2. 270
    3. 180
    4. 360

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