The area of a triangular vegetable field is 20 square meters, the known base is 8 meters, what is its height in meters?
一块三角形菜地的面积是20平方米，已知底是8米，求它的高是多少米？
<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>