The radii of two circles are 19cm and 9cm respectively. Find the radius of the circle which has a circumference equal to the sum of the circumferences of the two circles.
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The radii of two circles are 19cm and 9cm respectively. Find the radius of the circle which has a circumference equal to the sum of the circumferences of the two circles. The radii of two circles are 19cm and 9cm respectively. Find the radius of the circle which has a circumference equal to the sum [...]