The area of a triangle is 40 square decimeters, the height is 8 decimeters, and the base is how many decimeters.
一个三角形的面积是40平方分米，高是8分米，底是多少分米．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">40 / 4</gadget>
<output>10</output>

<result>10</result>