Question
Download Solution PDFएक लंब वृत्तीय शंकु की ऊँचाई और तिर्यक ऊँचाई क्रमशः 3√23 सेमी और 16 सेमी दी गई है। π को 22/7 मानते हुए, इसी शंकु का वक्र पृष्ठीय क्षेत्रफल ज्ञात कीजिये।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF⇒ शंकु के वक्र पृष्ठीय क्षेत्रफल का सूत्र = πrl
जहाँ r त्रिज्या है और l शंकु की तिर्यक ऊँचाई है।
⇒ r = √(l2 – h2)
⇒ r = √(256 – 207)
⇒ r = √49 = 7 सेमी
∴ शंकु का वक्र पृष्ठीय क्षेत्रफल = (22/7) × 7 × 16 = 352 सेमी2Last updated on Jun 2, 2025
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