The surface formed by the points at a fixed distance from a given straight line called the axis of the **cylinder**. .

A right circular **cylinder** with radius r and height h.

Volume of the cylinder: π × r² × h

Surace area of the cylinder: 2 × π × r × (r + h)

Number of faces : 2

Real life objects in cylindrical shape are Pipe, Battery , Candle , Piston etc.

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