The area of a triangle is 20cm**2 and the base is 8cm. What is the height of the triangle?
一个三角形面积是20cm**2，底是8cm，这个三角形的高是多少．
<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">20 * (1/4)</gadget>
<output>5</output>

<result>5</result>