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Q1. If the circumference and the area of a circle are numerically equal, then diameter of the circle is 


(a) `Pi/2`


(b) 2`Pi`


(c) 2


(d) 4


Q2. The difference between the circumference and radius of a circle is 37 cm. The area of the circle is 


Q3. A wire can be bent in the form of a circle of radiuss 56 cm. If it is bent in the form of a square, then its area will be 


Q4. If a wire is bent into the shape of a square, then the area of the square is 81 cm2. When wire is bent into a semi - circular shape, then the area of the semi circle  will be 


Q5. A circular park has a path of uniform width around it. The difference between the outer and inner circumferences of the circular path is 132m . Its width is 


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