Question
Download Solution PDFThe ratio of the lateral surface area to the total surface area of a cylinder with base diameter 60 cm and height 10 cm is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Base diameter of cylinder (d) = 60 cm
Height of cylinder (h) = 10 cm
Formula used:
Lateral Surface Area (LSA) = 2πrh
Total Surface Area (TSA) = 2πrh + 2πr2
Calculation:
Radius (r) = d/2 = 60/2 = 30 cm
LSA = 2πrh = 2×π×30×10 = 600π cm2
TSA = 2πrh + 2πr2 = 2×π×30×10 + 2×π×302 = 600π + 1800π = 2400π cm2
Ratio (LSA : TSA) = 600π : 2400π
⇒ 1 : 4
∴ The correct answer is option (4).
Last updated on Jul 22, 2025
-> The Staff selection commission has released the SSC CHSL Notification 2025 on its official website.
-> The SSC CHSL New Application Correction Window has been announced. As per the notice, the SCS CHSL Application Correction Window will now be from 25.07.2025 to 26.07.2025.
-> The SSC CHSL is conducted to recruit candidates for various posts such as Postal Assistant, Lower Divisional Clerks, Court Clerk, Sorting Assistants, Data Entry Operators, etc. under the Central Government.
-> The SSC CHSL Selection Process consists of a Computer Based Exam (Tier I & Tier II).
-> To enhance your preparation for the exam, practice important questions from SSC CHSL Previous Year Papers. Also, attempt SSC CHSL Mock Test.
->UGC NET Final Asnwer Key 2025 June has been released by NTA on its official site
->HTET Admit Card 2025 has been released on its official site