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How many liters of water fit into the shape of a cylinder with a bottom diameter 20 cm and a height 45 cm?

Result

x =  14.137 l

Solution:

r=20/2/10=1 h=45/10=92=4.5 x=π⋅ r2⋅ h=3.1416⋅ 12⋅ 4.5≐14.1372≐14.137 lr=20/2/10=1 \ \\ h=45/10=\dfrac{ 9 }{ 2 }=4.5 \ \\ x=\pi \cdot \ r^2 \cdot \ h=3.1416 \cdot \ 1^2 \cdot \ 4.5 \doteq 14.1372 \doteq 14.137 \ \text{l}

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