Question
Download Solution PDFएका वृत्तचितीच्या पायाची त्रिज्या 4 सेमी वरून 16 सेमी पर्यंत वाढविली जाते, परंतु त्याचे वक्र पृष्ठफळ अपरिवर्तित राहते. जर वृत्तचितीची प्रारंभिक उंची 4 सेमी असेल, तर त्याची नवीन उंची किती?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेले आहे:
प्रारंभिक त्रिज्या (r) = 4 सेमी
नवीन त्रिज्या (R) = 16 सेमी
प्रारंभिक उंची (h) = 4 सेमी
नवीन उंची = H सेमी
दोन्ही परिस्थितीत वृत्तचितीचे वक्र पृष्ठफळ अपरिवर्तित राहते.
वापरलेले सूत्र:
वृत्तचितीचे वक्र पृष्ठफळ = 2πrh
येथे, r = वृत्तचितीची त्रिज्या
h = वृत्तचितीची उंची
गणना:
प्रारंभिक वक्र पृष्ठफळ = 2 × π × 4 × 4
= 32π सेमी2
नवीन वक्र पृष्ठफळ = 2 × π × 16 × H
= 32πH सेमी2
जसे, प्रारंभिक वक्र पृष्ठफळ = नवीन वक्र पृष्ठफळ
⇒ 32π = 32πH
⇒ H = 1 सेमी
म्हणून, वृत्तचितीची नवीन उंची 1 सेमी असेल.
Last updated on Jun 2, 2025
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