Question
Download Solution PDFएक गोले का पृष्ठीय क्षेत्रफल ज्ञात कीजिए जिसका व्यास 88 cm है।
This question was previously asked in
RPF Constable 2024 Official Paper (Held On 02 Mar, 2025 Shift 2)
Answer (Detailed Solution Below)
Option 4 : 7744π cm2
Free Tests
View all Free tests >
General Science for All Railway Exams Mock Test
2.1 Lakh Users
20 Questions
20 Marks
15 Mins
Detailed Solution
Download Solution PDFदिया गया है:
व्यास (d) = 88 cm
त्रिज्या (r) = d/2 = 88/2 = 44 cm
प्रयुक्त सूत्र:
पृष्ठीय क्षेत्रफल (A) = 4πr2
गणना:
A = 4π(44)2
⇒ A = 4π(1936)
⇒ A = 7744π cm2
∴ सही उत्तर विकल्प 4 है।
Last updated on Jun 19, 2025
-> The Railway Recruitment Board has released the RPF Constable 2025 Result on 19th June 2025.
-> The RRB ALP 2025 Notification has been released on the official website.
-> The Examination was held from 2nd March to 18th March 2025. Check the RPF Exam Analysis Live Updates Here.