The area of a triangle is 12cm**2, its base is 4cm, and its height is in centimeters.
一个三角形的面积是12cm**2，它的底边是4cm，高是多少厘米．
<gadget id="calculator">2 / 4</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">12 * (1/2)</gadget>
<output>6</output>

<result>6</result>