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      Question

      A wire, when bent in the form of a square encloses an

      area of 121 sq. cm. If the same wire is bent in the form of a circle, what is the area enclosed by it?
      A 488 sq. cm Correct Answer Incorrect Answer
      B 154 sq. cm Correct Answer Incorrect Answer
      C 616 sq. cm Correct Answer Incorrect Answer
      D 492 sq. cm Correct Answer Incorrect Answer

      Solution

      Area of Square =121. Side of wire (Square)=11 Length of wire =4Γ—11=44cm ATQ- 2 Ο€ r =44 R =44Γ—7 / (22Γ—2) =7cm And now an area of circle = Ο€r2 =22/7 Γ—7 Γ—7 =154=154 sq. cm

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