the radii of two circkes are 19 cm and 9 cm respectively . find the radius of the circle which has circumference equal to the sum of the circumferences of the two circles.
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Circumference of 1 circle
2*3.14*19=119.32
Circumference of 2 circle
2*3.14*9=56.52
2*3.14*19=119.32
Circumference of 2 circle
2*3.14*9=56.52
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