Question
Download Solution PDFएक गोले का पृष्ठीय क्षेत्रफल ज्ञात कीजिए जिसका व्यास 112 सेमी है।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
गोले का व्यास (d) = 112 सेमी
प्रयुक्त सूत्र:
त्रिज्या (r) = \(\frac{d}{2}\)
गोले का पृष्ठीय क्षेत्रफल = \(4\pi r^2\)
\(\pi\) का मान = \(\frac{22}{7}\)
गणना:
त्रिज्या (r) = \(\frac{112}{2}\)
⇒ r = 56 सेमी
गोले का पृष्ठीय क्षेत्रफल = \(4 \times \frac{22}{7} \times (56)^2\)
⇒ पृष्ठीय क्षेत्रफल = \(4 \times \frac{22}{7} \times 56 \times 56\)
⇒ पृष्ठीय क्षेत्रफल = \(4 \times 22 \times 8 \times 56\)
⇒ पृष्ठीय क्षेत्रफल = \(88 \times 448\)
⇒ पृष्ठीय क्षेत्रफल = 39424 सेमी2
इसलिए, गोले का पृष्ठीय क्षेत्रफल 39424 सेमी2 है।
Last updated on Jul 19, 2025
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