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Find the total surface area of a cylinder of base radius 5cm and length 7cm...

Mathematics
JAMB 2015

Find the total surface area of a cylinder of base radius 5cm and length 7cm ( π = 3.14)

  • A. 17.8cm2
  • B. 15.8cm2
  • C. 75.4cm2
  • D. 54.7cm2
  • E. \(377.0cm^{2}\)
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Correct Answer: Option E
Explanation

The total surface area of a cylinder = 2πrl + 2πr2

= 2πr(l + r)

= 2 × 3.14 x 5(7+5)

2 × 3.14 × 12 x 5

= 377.1cm (1DP)

There is an explanation video available below.

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Explanation Video

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