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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 8 - Mathematics
3.30 Area of a Circle - I

Example:
The radius of a circle is 7.5 cm. Find its area.
Solution:
The area of a circle (A) = pr2
= 22/7 * 7.5 * 7.5
= 1237.5 / 7
= 176.79 Sq. cm.(Answer is corrected by two decimal places)

Directions: Solve the following problems and correct the answer at two decimal places. Also write at least ten examples of your own.
Q 1: The radius of a circle is 16.4 cm. Find its area.
845.3 Sq.cm.
None of these
845 Sq.cm.
846.5 Sq.cm.

Q 2: The radius of a circle is 9.6 cm. Find its area.
286 Sq.cm.
None of these
286.6 Sq.cm.
286.65 Sq.cm.

Q 3: The radius of a circle is 19.8 cm. Find its area.
1232.13 Sq.cm.
1232 Sq.cm.
1232.1 Sq.cm.
None of these

Q 4: The radius of a circle is 17.6 cm. Find its area.
973 Sq.cm.
973.5 Sq.cm.
973.53 Sq.cm.
None of these

Q 5: The radius of a circle is 6.5 cm. Find its area.
132.79 Sq.cm.
132.9 Sq.cm.
132 Sq.cm.
None of these

Q 6: The radius of a circle is 18.6 cm. Find its area.
1087.3 Sq.cm.
1087 Sq.cm.
None of these
1086.7 Sq.cm.

Q 7: The radius of a circle is 29.7 cm. Find its area.
2772.2 Sq.cm.
None of these
2772 Sq.cm.
2772.28 Sq.cm.

Q 8: The radius of a circle is 7.6 cm. Find its area.
None of these
181.5 Sq.cm.
181.53 Sq.cm.
181 Sq.cm.

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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