Hi frnz..
Plz help... I have my exam tomorrow...
--- How many litres of water will a hemisperical tank of diameter 4.2cm contain...???
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= diameter 2× radius
therefore, radius =4.2/2 = 2.1 cm.
volume of hemispherical tank = 2/3 ×π ×r^3
= 2/3 ×22/7 × (2.1)^3
=2/3 × 22/7 ×2.1× 2.1 ×2.1
=19404/1000cm3
Hence there is 0.019404 l of water is in the hemispherical tank. Ans☺️☺️☺️
therefore, radius =4.2/2 = 2.1 cm.
volume of hemispherical tank = 2/3 ×π ×r^3
= 2/3 ×22/7 × (2.1)^3
=2/3 × 22/7 ×2.1× 2.1 ×2.1
=19404/1000cm3
Hence there is 0.019404 l of water is in the hemispherical tank. Ans☺️☺️☺️
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