The area of the triangle is 27cm**2, the ratio of the base to the height is 2:3, what is the height of the triangle in cm?
三角形的面积是27cm**2，底和高的比是2：3，则三角形的高是多少cm．
<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<result>9</result>