The frame of a lampshade is cylindrical in shape . It has base diameter 28 cm and height17 cm . It is to be covered with a decorative cloth . A margin of 2 cm is to given for folding it over top and bottom of the frame . If 1/12 of cloth is washed in cutting and pasting , find how much cloth is required to be purchased for covering the frame.

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Answers

2016-04-14T20:33:55+05:30
2×pi×r×h=2×22/7×14×(17+2+2)=1848cm
1/12×1848=154cm
1848cm+154cm=2002cm
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