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What is surface area of pencil with 15cm and 0.6cm in diameter?
Wiki User
∙ 14y ago
Ignoring the point and assuming a cylindrical pencil then the surface area would be made up of one rectangle and two circles.
The circles would have areas of 3.14 x 0.32 = 0.28cm2 giving a total for both ends of 0.56cm2
The rectangle would have a length of 15cm and a height of 3.14 x 0.6 = 1.88 thus having a total area of 28.26cm2
Thus the total area would be 28.26 + 0.56 = 28.82cm2
If you sharpen the pencil then the calculation becomes more complicated and you'd have the know the angle of the sharpened end
Wiki User
∙ 14y ago
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ANUS
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