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What is the total surface area of a cylinder with radius 2cm and height 1.5cm,...

Mathematics
NECO 2002

What is the total surface area of a cylinder with radius 2cm and height 1.5cm, correct to 2 significant figures?

  • A. 440cm\(^2\)
  • B. 220cm\(^2\)
  • C. 88cm\(^2\)
  • D. 44cm\(^2\)
  • E. 22cm\(^2\)
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Correct Answer: Option D
Explanation

T.S.A of a cylinder = \(2\pi r (r + h)\)

= \(2 \times \frac{22}{7} \times 2 (2 + 1.5)\)

= 44 cm\(^2\)


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