MathematicsMensurationJAMB
Find the total surface area of a closed cylindrical drum of diameter 14 cm and height 20 cm. [π = 22/7]
Show answer
Answer: D. 1,188 cm²
r = 7: 2πr(r + h) = 2 × 22/7 × 7 × 27 = 1,188 cm².
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.