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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 7 - Mathematics
9.8 Circumference of a Circle - II

Example:
The radius of a circle is 15 cm. Find its circumference.

Solution:
The circumference of the circle = 2pr.
Given that,
radius of a circle (r) = 15 cm.
We know the value of p = 22/7
\ Circumference of the circle = 2 * 22/7 * 15
= 94.285714 cm.
= 94.3 cm. (approximately)


Directions: Read the above example carefully and answer the following questions. Also write at least 10 examples of your own.

Q 1: The radius of a circle is 5.25cm. Find its circumference.
43 cm
33 cm
33.5 cm
43.5 cm

Q 2: The radius of a circle is 4.9 cm. Find its circumference.
40 cm
40.8 cm
30.8 cm
30 cm

Q 3: Find the radius of a circle its circumference is given by 8.8 cm.
1.4 cm
7.8 cm
6.8 cm
4.8 cm

Q 4: Find the diameter of the circle if its circumference is given by 2.2 cm.
3.1 cm
0.35 cm
2.2 cm
0.7 cm

Question 5: This question is available to subscribers only!

Question 6: This question is available to subscribers only!


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