Question
Download Solution PDFगोले का आयतन 38,808 घन सेमी3 है। गोले का पृष्ठीय क्षेत्रफल कितना है?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
गोले का आयतन = 38,808 सेमी³
प्रयुक्त अवधारणा:
गोले के आयतन का सूत्र इस प्रकार है:
V = (4/3)πr³
गोले के पृष्ठीय क्षेत्रफल का सूत्र इस प्रकार है:
A = 4πr²
गणना:
V = (4/3)πr³
38808 = 4/3 × 22/7 × r3
⇒ r 3 = (38808 × 3 × 7)/(4 × 22)
⇒ r3 = (9702 × 3 × 7)/22
⇒ r3 = 441 × 21
⇒ r = 21 सेमी
कुल पृष्ठीय क्षेत्रफल = 4πr2
⇒ 4 × 22/7 × 21 × 21
⇒ 5544 सेमी2
∴ विकल्प 3 सही उत्तर है।
Last updated on Jul 9, 2025
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