Q1:
|
Which of the following can be used as approximations for pi ? |
A. B. C. 3.14 D. all of the above |
Answer 1:
|
|
Q2:
|
A circle has a radius of 6 cm.
What is its circumference?
|
A. 111.6 cm B. 37.2 cm C. 18.6 cm D. 3.14 cm |
Answer 2:
|
|
Q3:
|
If the radius of a circle is 12 cm, what is the diameter? |
A. 24 cm B. 37.2 cm C. 4 cm D. 6 cm |
Answer 3:
|
|
Q4:
|
What is the radius of the circle?
|
A. 16 m B. 49.6 m C. 32 m D. 8 m |
Answer 4:
|
|
Q5:
|
What is the circumference of the circle above? |
A. 49.6 m B. 24.8 m C. 32 m D. 99.2 m |
Answer 5:
|
|
Q6:
|
What is the area of the circle above? |
A. 793.6 m2 B. 49.6 m2 C. 198.4 m2 D. 99.2 m2 |
Answer 6:
|
|
Q7:
|
Which of the following units could be used to measure the circumference of a circle? |
A. tonnes B. hectares C. litres D. kilometres |
Answer 7:
|
|
Q8:
|
If the circumference of a circle is 24.8 cm, what is its diameter? |
A. 2 cm B. 4 cm C. 8 cm D. 16 cm |
Answer 8:
|
|
Q9:
|
The area of a circle is given as 151.9 m2.
What is its radius?
|
A. 7 cm B. 14 cm C. 28 cm D. 49 cm |
Answer 9:
|
|
Q10:
|
If the radius of a circle is doubled, how many times greater is its area? |
A. 2 B. 4 C. 8 D. 16 |
Answer 10:
|
|