What is the total surface area of a cylinder with radius ...
What is the total surface area of a cylinder with radius 2cm and height 1.5cm, correct to 2 significant figures?
440cm\(^2\)
220cm\(^2\)
88cm\(^2\)
44cm\(^2\)
22cm\(^2\)
Correct answer is D
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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