Aquarium 67724

The aquarium measures 40 cm, 40 cm, and 50 cm. The water reaches 45 mm from the upper edge. Norbert bought the fish, and when he put them in the aquarium, the step level was 0.5 mm. What is the volume of new fish?

Correct answer:

V =  80 cm³

Step-by-step explanation:

$$\begin{gathered} a=40\text{cm} \\ b=40\text{cm} \\ c=0.5\text{mm}\to \text{cm}=0.5:10\text{cm}=0.05\text{cm} \\ V=a\cdot b\cdot c=40\cdot 40\cdot 0.05=80{\text{cm}}^3 \end{gathered}$$

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