Question
Download Solution PDFएक बेलन का पार्श्व क्षेत्रफल 3168 सेमी2 है और इसकी ऊँचाई 48 सेमी है। आयतन ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
बेलन का पार्श्व पृष्ठीय क्षेत्रफल = 3168 सेमी2
ऊँचाई = 48 सेमी
प्रयुक्त सूत्र:
बेलन का आयतन = πr2h
बेलन का वक्र पृष्ठीय क्षेत्रफल = 2πrh
गणना:
⇒ 2πrh = 3168
⇒ 2 × 22/7 × r × 48 = 3168
⇒ r = 3168 × 7/(2 × 22 × 48)
⇒ r = 22176/2112
⇒ r = 10.5 सेमी
आयतन = 22/7 × 10.5 × 10.5 × 48 = 16632 सेमी3
∴ सही उत्तर 16632 सेमी3 है।
Last updated on Jun 13, 2025
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