The area of a triangle is 64m**2, its base is 12.8m, and its height is m.
一个三角形的面积是64m**2，它的底是12.8m，高是多少m．
<gadget id="calculator">2 / 12.8</gadget>
<output>0.15625</output>

<gadget id="calculator">64 * 0.15625</gadget>
<output>10</output>

<result>10</result>