Question
Download Solution PDF3 सेमी त्रिज्या आणि 4 सेमी उंची असलेल्या शंकूचा वक्र पृष्ठभागाचे क्षेत्रफळ (सेमी2 मध्ये) काढा.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिलेल्याप्रमाणे:
त्रिज्या (r) = 3 सेमी
उंची (h) = 4 सेमी
वापरलेले सूत्र:
शंकूचा वक्र पृष्ठभागाचे क्षेत्रफळ (CSA) = πrl
जिथे, l = तिरपी उंची =
गणना:
l =
⇒ l =
⇒ l =
⇒ l = 5 cm
CSA = π × r × l
⇒ CSA = π × 3 × 5
⇒ CSA = 15π सेमी2
∴ योग्य उत्तर पर्याय 3 आहे.
Last updated on Jun 17, 2025
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