If the area of a triangle is 25cm**2 and the height is 5cm, what is the base in cm?
若一个三角形的面积为25cm**2，高为5cm，则底为多少cm．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">25 * (2/5)</gadget>
<output>10</output>

<result>10</result>