What is the surface area of a cylindrical pipe of length 150 cm and diameter 5cm?
- 750pi cm^2
- 1500pi cm^2
- 3750pi cm^2
Explanation
The curved surface area of a cylinder is pi times the diameter times the length. With diameter 5 cm and length 150 cm this gives pi x 5 x 150 = 750pi cm^2. Using twice the diameter or the radius incorrectly would double the result.
jahidhasan24 asking:
why?
Community Comments (1)
D
dimky Posts: 514 06.06.2012 / 09:38
surface area = 150 * 5 * π or 750π
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