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Question

The formula to find the total surface area of a Rs.5 coin is ..............
  1. πr2h
  2. πr(r+h)
  3. 2πr(h+r)
  4. πr3h

A
πr2h
B
πr(r+h)
C
2πr(h+r)
D
πr3h
Solution
Verified by Toppr

A 5 rupee coin is cylindrical in shape having radius r and haight h.
TSA of a cylinder is given by 2πr(r+h)
Thus, the total surface area of the cylinder can be calculated by using the formula 2πr(h+r)
Hence, option D is correct.

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