Volume of right circular cylinder

Thermocol, plastic clay.

- Make a cylinder of any dimensions using plastic clay. Let its height be
**h**and radius of base circle**r**. - Cut the cylinder into 8 sectorial sections as shown in figure. [Fig a]
- Place the segments alternately as shown in figure. [Fig b]

Figure (a) Figure (b)

- Create right circular cylinder by providing radius for the base and height of the cylinder.
- Click on button "Draw Cylinder" to draw cylinder.
- Click on the cylinder to mark eight sectorial parts on it.
- Click on each sectorial part to color them differently.
- Click on the cylinder to cut apart the eight sectorial parts.
- Click on each sectorial part sequentially from left. This will join all sectorial parts to form a cuboid.

- The segments approximately form a solid cuboid of height ‘h’, breadth 'r' and length 'П r'.
- The volume of cuboid = length x breadth x height = l x b x h. = Пr X r X h = Пr
^{2}h - Hence, Volume of the cylinder = Пr
^{2}h

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