What is the area of a triangle with a base of 12 cm and a height of 0.4 cm?
一个三角形，底是12厘米，高是0.4分米，面积是多少平方厘米．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">12 * 0.4 * 5</gadget>
<output>24</output>

<result>24</result>