Mathematics · Mensuration
एक ठोस गोले को पिघलाकर 18 एक समान शंकु बनाए जाते हैं, जिनमें से प्रत्येक की आधार त्रिज्या 3 सेमी और ऊंचाई 18 सेमी है। गोले की त्रिज्या ज्ञात कीजिए।
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