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Question

In the following table information about a few cylinder is given copy and complete the table
Radius(cm)height(cm)Curved surface Area of the baseTotal surface
i)79
ii)1410
iii)215

Solution
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Curved surface area of a cylinder=2πrh
Base area=πr2
Total Surface area=2πrh+2πr2=2πr(r+h)
Radius(cm) height(cm) Curved surface Area Area of the baseTotal Surface Area
i) 7 9 396 154 704
ii) 14 10 880 616 2112
iii) 21 5 660 1386 3432


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