The area of a triangle is 12cm**2, the base is 6cm, and the height is cm.
一个三角形的面积是12cm**2，底是6cm，高是多少cm．
<gadget id="calculator">2 / 6</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">12 * (1/3)</gadget>
<output>4</output>

<result>4</result>