# Right Circular Cylinder

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In the above figure, r is the radius of the base and h is the height of a right circular cylinder. A cylinder is generated by rotating a rectangle or a square by fixing one of its sides.
• Volume = area of base Ã— height

Volume = Ï€r2h
• Curved surface area (CSA) = Perimeter of base Ã— height

LSA = 2Ï€rh
• Total surface area (TSA) = LSA + Area of the top + Area of the base

TSA = 2Ï€rh + Ï€r2 + Ï€r2

TSA = 2Ï€r(r + h)

# Some important deductions

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• If the above rectangular sheet of paper (ABCD) is rolled along its length to form a cylinder, then the radius (r) of the cylinder will be (L/2Ï€) and its height will be b and Volume of this cylinder = , where L is the length of the rectangle.
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If the above rectangular sheet of paper (ABCD) is rolled along its breadth to form a cylinder, then the radius (r) of the cylinder will be  and its height will be L.

Volume of this cylinder =