What is the area of a triangle whose base and height are both 10.5 cm?
一个三角形，底和高都是10.5厘米，这个三角形的面积是多少．
<gadget id="calculator">10.5 / 2</gadget>
<output>5.25</output>

<gadget id="calculator">10.5 * 5.25</gadget>
<output>55.125</output>

<result>55.125</result>