The area of a triangle is 7.8 square decimeters, the length of the base is 1.3 decimeters, what is its height?
一个三角形的面积是7.8平方分米，底边长1.3分米，它的高是多少分米．
<gadget id="calculator">2 / 1.3</gadget>
<output>1.538462</output>

<gadget id="calculator">7.8 * 1.538462</gadget>
<output>12.000004</output>

<result>12.000004</result>