The water tank
The water tank has the shape of a sphere with a radius of 2 m. How many liters of water will fit in the tank? How many kilograms of paint do we need to paint the tank, if we paint with 1 kg of paint 10 m2?
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Math student
The water tank has the shape of a sphere with a radius of 3 m. How many meters of water will fit in the tank? How many kilograms of paint do we need to paint the tank.
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