The area of a triangle is 17cm**2, the height is 5cm, what is the length of the base.
一个三角形的面积是17cm**2，高是5cm，底边长是多少．
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">17 * (2/5)</gadget>
<output>34/5 = around 6.8</output>

<result>34/5 = around 6.8</result>