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A petrol tank is in the shape of a cylinder with hemisphere of the same radius as the base of the cylinder attached to both ends. If the total length of the tank is 5 meters and the base radius of the cylinder is 1 metre, how many litres of petrol can it hold? |
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Answer» Volume of cylinder = πr2h = 3πcm3 Volume of hemisphere = 2/3 πr3 \(=\frac{2}{3}\pi=\frac{2}{3}\pi\) cm3 Volume of petrol tank = \(3\pi+2\times\frac{2\pi}{3}\) \(=3\pi+\frac{4\pi}{3}=\frac{13\pi}{3}=4.33\pi\) m3 \(=4.33\pi \times1000l=13596.2l\) |
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