The area of a triangle is 20 square meters and the height is 5 meters. What is the base in meters?
一个三角形的面积是20平方米，高是5米，它的底是多少米．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">20 * (2/5)</gadget>
<output>8</output>

<result>8</result>