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### Grade 8 - Mathematics3.30 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 18.6 cm. Find its area.1086.7 Sq.cm.None of these1087.3 Sq.cm.1087 Sq.cm. Q 2: The radius of a circle is 17.6 cm. Find its area.973.53 Sq.cm.973 Sq.cm.973.5 Sq.cm.None of these Q 3: The radius of a circle is 7.6 cm. Find its area.None of these181 Sq.cm.181.5 Sq.cm.181.53 Sq.cm. Q 4: The radius of a circle is 16.4 cm. Find its area.845.3 Sq.cm.846.5 Sq.cm.845 Sq.cm.None of these Q 5: The radius of a circle is 15.4 cm. Find its area.745.3 Sq.cm.745 Sq.cm.None of these745.36 Sq.cm. Q 6: The radius of a circle is 5.4 cm. Find its area.91 Sq.cm.91.65 Sq.cm.91.6 Sq.cm.90.65 Sq.cm. Q 7: The radius of a circle is 9.6 cm. Find its area.286 Sq.cm.286.6 Sq.cm.None of these286.65 Sq.cm. Q 8: The radius of a circle is 19.8 cm. Find its area.None of these1232.13 Sq.cm.1232.1 Sq.cm.1232 Sq.cm. Question 9: This question is available to subscribers only! Question 10: This question is available to subscribers only!