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Area, SMB-014

Calculate the surface area of the half-cylinder below (including the base), giving your answer correct to two decimal places.   (3 marks)
 

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`848.29\ text(m)^2`

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`text(Surface Area)` `= \frac{1}{2} (2pi r^2 + 2pi rh) + (7 xx 45)`
  `= \frac{1}{2} (2pi xx 3.5^2 + 2pi xx 3.5 xx 45) + 315`
  `= 848.285…`
  `= 848.29\ \text{m}^2\ \ text{(2 d.p.)}`