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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Geometry
5.3 Circumference of a Circle

Circumference of a Circle:
The distance around a circle is called the called the circumference. It is denoted by "C". The circumference of a circle is p times its diameter or 2ptimes its radius.

p is a constant, the value of p is 22/7.

\C = pd or C = 2pr

Example: The radius of a circle is 3.5 cm. Find its circumference.
C = 2pr
Given that r = 3.5 cm,
\C = 2 * 22/7 * 3.5 = 22cm
\C = 22 cm


Directions: Answer the following questions. Also write at least 5 examples of your own.
Q 1: The radius of a circle is 2.8 cm, find its circumference.
17.6 cm
8.3 cm
18.0 cm
35.2 cm

Q 2: The radius of a circle is 4.9 cm, find its circumference.
15.4 cm
61.2 cm
30.0 cm
30.8 cm

Q 3: The radius of a circle is 2.1 cm, find its circumference.
26.4 cm
13.0 cm
13.2 cm
6.6 cm

Q 4: The radius of a circle is 0.7 cm, find its circumference.
2.2 cm
8.8 cm
4.4 cm
4.0 cm

Q 5: The diameter of a circle is 6.3 cm, find its circumference.
9.9 cm
39.6 cm
20.0 cm
19.8 cm

Q 6: The diameter of a circle is 35 cm, find its circumference.
110 cm
55 cm
100 cm
220 cm

Q 7: The radius of a circle is 1.4 cm, find its circumference.
8.0 cm
8.8 cm
4.4 cm
17.6 cm

Q 8: The diameter of a circle is 14 cm, find its circumference.
40 cm
88 cm
22 cm
44 cm

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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