Question
Download Solution PDF7 সেমি ব্যাসার্ধ এবং 1144 সেমি2 মোট পৃষ্ঠতলের ক্ষেত্রফল বিশিষ্ট নিরেট চোঙের উচ্চতা কত?
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Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
r = 7 সেমি
মোট পৃষ্ঠতলের ক্ষেত্রফল = 1144 সেমি²
অনুসৃত সূত্র:
চোঙের মোট পৃষ্ঠতলের ক্ষেত্রফল = 2πr(h + r)
গণনা:
সূত্রে এই মানগুলি বসিয়ে পাই
⇒ 1144 = 2 × (22/7) × 7 × (h + 7)
সমীকরণটি সরল করে পাই:
⇒ 1144 = 44 × (h + 7)
উভয়পক্ষকে 44 দিয়ে ভাগ করে পাই
⇒ 1144 / 44 = h + 7
⇒ 26 = h + 7
সবশেষে h-এর জন্য সমাধান করে পাই:
⇒ h = 26 - 7 = 19 সেমি
সুতরাং, চোঙের উচ্চতা 19 সেমি।
Last updated on Jun 30, 2025
-> The Staff Selection Commission has released the SSC GD 2025 Answer Key on 26th June 2025 on the official website.
-> The SSC GD Notification 2026 will be released in October 2025 and the exam will be scheduled in the month of January and February 2026.
-> The SSC GD Merit List is expected to be released soon by the end of April 2025.
-> Previously SSC GD Vacancy was increased for Constable(GD) in CAPFs, SSF, Rifleman (GD) in Assam Rifles and Sepoy in NCB Examination, 2025.
-> Now the total number of vacancy is 53,690. Previously, SSC GD 2025 Notification was released for 39481 Vacancies.
-> The SSC GD Constable written exam was held on 4th, 5th, 6th, 7th, 10th, 11th, 12th, 13th, 17th, 18th, 19th, 20th, 21st and 25th February 2025.
-> The selection process includes CBT, PET/PST, Medical Examination, and Document Verification.
-> The candidates who will be appearing for the 2026 cycle in the exam must attempt the SSC GD Constable Previous Year Papers. Also, attempt SSC GD Constable Mock Tests.