The cylinderical tank with radius 8.4cm is closed at one end by a hemispherical of the total height of the tank is 52.8cm how many litres of petrol can it contain

Dear Student,
Amount of petrol present = volume of the tank = Volume of the cylinder + volume of the hemisphere
Radius of the hemisphere  = radius of the cylinder = 8.4 cm
Height of the cylinder = (52.8 - 8.4) cm = 44.4 cm
Volume of the cylinder = πr2h = 227×8.4×8.4×44.4 cm3 = 9846.14 cm3 Volume of the hemisphere = 23πr3 = 23×227×8.4×8.4×8.4  cm3 =1241.86 cm3Total volume = 1241.86 +9846.14  cm3 =11088  cm3

Regards

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