The area of a triangle is 20 square meters. If the base is 5 meters, what is the height in meters?
三角形面积是20平方米，如果底是5米，高是多少米．
<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>