A cuboid marble with a volume of 7.2 cubic meters is a square whose base is 6 decimeters long. What is the height of this marble?
一块体积为7.2立方米的长方体大理石，底面边长为6分米的正方形，这块大理石的高是多少米？
<gadget id="calculator">6 / 10</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) * (3/5)</gadget>
<output>9/25 = around 0.36</output>

<gadget id="calculator">7.2 / (9/25)</gadget>
<output>20</output>

<result>20</result>