Dad made a cuboid fish tank, which is 1.5 meters long, 1 meter wide and 0.8 meters high when measured from the inside. If the fish tank is filled with water at a height of 0.5 meters, what is the volume of the water in cubic meters?
爸爸做了一个长方体的鱼缸，从里面量长是1.5米，宽是1米，高是0.8米．如果鱼缸里装0.5米高的水，那么这些水的体积是多少立方米？
<gadget id="calculator">1.5 * 1 * 0.5</gadget>
<output>0.75</output>

<result>0.75</result>