Find the curved surface area of cylinder if its diameter is 28cm and height is 20cm.
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5
Answer:
Total surface area of a cylinder of Radius "R" and height "h" =2πR(R+h)
Radius of the base of the cylinder =
2
28
=14 cm
Hence, total surface area of the cylinder =2×
7
22
×14(14+20)
=2992cm
2
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