A given cylinder has a radius of 7 cm and a height of 15 cm.The cylinder has one of its end open and the other closed. Calculate its surface area.
A: 1397 cm²
B: 1320 cm²
C: 814 cm²
D: 101 cm²
An open tank has one circular surface closed and one open
Therefore,
Surface area of the cylinder=area of one circles+Area of curved surface
Surface area of the cylinder=(πr²)+πdh
Area=22/7×7×7+22/7×14×15
=154+660
=814 cm²
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