The area of a triangle is 25 square meters, the height is 5 meters, what is the length of the base?
一个三角形的面积是25平方米，高5米，底是多长？
<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>