## Tuesday, April 6, 2010

### Chap 16 Data Handling (Lesson 1) Worksheet 16.1 Q2

The Pie Chart below represents the traffic condition outside SST at 7.25 am on a typical morning.
(a) Find the angle of the sector representing motorcycle to the nearest degree.
(b) Find the percentage of sector representing cars, correct your answer to 3 significant figures.

courtesy of Ms LohKY

1. a) The angle of the sector representing motorcycle is 28 degrees.
b) The percentage of sector representing cars is 74.4%.

Preston

2. a) The angle of the pie chart representing motorcycles is approximately 29 degrees.
b) The percentage of sector representing cars is 69.4% (1 d.p.)

3. a)The angle of the number of motorcycle on the pie chart is approximately 29 degrees.
b)The percentage of the number of cars is 69.2%.

4. (a) The angle of the sector representing motorcycle is about 27 degrees.

(b) The percentage of sector representing the car is 69.2%

5. a) The angle is approx. 28 degrees
b) The percentage is 69.2%

6. a) The angle is approximately 29 degrees.
b) The percentage is 69.2%

Si Yuan

7. a) the angle is about 28 degrees

b)the percentage of the sector of the number of cars is 69.2% (to 1 d.p.)

8. a) The angle is approximately 29 degrees
b)The percentage is 69.2%

9. a) The angle is approximately 28 degrees.
b) The percentage is 69.2%.

10. a) The angle of the motorcycle on the pie chart is 29 degrees.
b) The percentage is 69.2%

11. a) The angle is about 28 degrees
b) 64.2%

12. a)The angle≈ 28 degrees
b)The percentage≈69.2 percent

13. (a) Find the angle of the sector representing motorcycle to the nearest degree.

A.Roughly 30 degrees.

(b) Find the percentage of sector representing cars, correct your answer to 3 significant figures.

A.66.667.

14. a)The angle is about 28 degree.
b)69.2%

b.)69.2%

16. a) It is approximately 28 degrees.
b)It is approximately 69%.
-Naveena

17. a)It is approximately 28 degrees.
b)The percentage is 69.2%.

18. a) The angle is approximately 30 degrees.

b) 69.2 %

19. a) The angle is about 28 degrees.
b) The percentage of sector representing the car is 69.2%

20. 1) ≈28˚
2) ≈104.516˚

21. a.)It is 28 degrees.

b.)It is 69.2%

22. This comment has been removed by the author.

23. a) It is 28 degrees.

b) The approximation is 69.2%.

P.S. Sorry for the late comment, and by the way, my last post was removed because I suddenly realized that the answer was actually wrong, and i am not suppose to use a protractor to measure it. Thanks to Hardy for helping me clarify.

24. Well done to those who attempted. As you have realized it's not about stating the same answers but rather about reviewing your concept n understanding n correcting any mistakes made. All the best on your common test.