The height of a cone is 0.9 meters and the area of the base is 4.5 square meters. What is the volume of the cone in cubic meters?
一个圆锥的高是0.9米，底面积是4.5平方米，这个圆锥的体积是多少立方米．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 4.5 * 0.9</gadget>
<output>1.35</output>

<result>1.35</result>