Mathematics · Mensuration
एक लंब वृत्तीय बेलन की ऊंचाई 14 सेमी है और इसके आधार की त्रिज्या 3.5 सेमी है। बेलन का कुल पृष्ठीय क्षेत्रफल कितना है? (π = 227 लें)
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