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  1. The area of circle is 38.5 sq. cm. Its circumference is ?
    1. 6.20 cm
    2. 11 cm
    3. 22 cm
    4. 121 cm
Correct Option: C

∵ ( 22 x r2) / 7 = 38.5
⇒ r2 =(38.5 x 7) /22
∴ r = 3.5 cm

∴ Circumference = 2 x (22/7) x 3.5 cm
= 22 cm


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