Radius of a circle is 3 meter, what would be the radius of a circle wh – InterviewSolution

1.	Radius of a circle is 3 meter, what would be the radius of a circle whose area is 9times the area of the first circle?
Answer» area of circle with radius 3marea=πr^2=9πcm^2hence nine time the area =9*9π=81πcm^2hence radius will.be 81π/9π=9cm

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