Sphere aquarium volume

The aquarium has the shape of a sphere with a diameter of 36 cm. Estimate and then calculate how many liters of water will fit in the aquarium when we fill it to the brim.

Final Answer:

V =  24.429 l

Step-by-step explanation:

$$\begin{gathered} D=36\text{cm}\to \text{dm}=36:10\text{dm}=3.6\text{dm} \\ r=D/2=\frac{18}{5}/2=\frac{18}{5\cdot 2}=\frac{18}{10}=\frac{9}{5}=1.8\text{dm} \\ V=\frac{4}{3}\cdot \pi \cdot r^3=\frac{4}{3}\cdot 3.1416\cdot 1.8^3=24.429\text{l} \end{gathered}$$

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