The area of a triangle is 40 square meters and the height is 5 meters. What is the base in meters?
一个三角形的面积是40平方米，高是5米，它的底是多少米．
<gadget id="calculator">40 / 5</gadget>
<output>8</output>

<gadget id="calculator">2 * 8</gadget>
<output>16</output>

<result>16</result>