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The radii of two circles are 20 cm and 1...

The radii of two circles are 20 cm and 13 cm, respectively. Find the radius of the circle which has a circumference equal to the sum of the circumference of two circles.
दो वृत्त की त्रिज्या क्रमशः 20 सेमी और 13 सेमी है। उस वृत्त की त्रिज्या ज्ञात कीजिए जिसमें दो वृत्त की परिधि के योग के बराबर एक परिधि है।

A

33 cm

B

32 cm

C

30 cm

D

28 cm

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