In a triangle ABC, the height AE on the base BC is 3.2 cm long, now the base is increased by 20 cm, how many square centimeters is the area increased?
一个三角形ABC，底边BC上的高AE长3.2厘米，现在底边增加20厘米，面积增加多少平方厘米？
<gadget id="calculator">3.2 / 2</gadget>
<output>1.6</output>

<gadget id="calculator">20 * 1.6</gadget>
<output>32</output>

<result>32</result>