Mathematics · Mensuration
एक अर्धगोलाकार कटोरे की त्रिज्या 3.5 सेमी है। इसे अंदर और बाहर दोनों तरफ से रंगा जाना है। ₹15 प्रति 10 सेमी2 की दर से इसे रंगने की लागत ज्ञात कीजिए। (π = 22/7 का उपयोग करें।)
- 1₹331
- 2₹431
- 3₹231✓
- 4₹531
सही उत्तर देखें
₹231
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