The base of a triangle is 6.8cm, the height is 8cm, what is the area?
一个三角形的底是6.8cm，高是8cm，面积是多少．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">6.8 * 4</gadget>
<output>27.2</output>

<result>27.2</result>