What is the area of a right triangle whose sides are 6cm, 8cm and 10cm, in cm**2.
边长分别是6cm、8cm和10cm的直角三角形，面积是多少cm**2．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">6 * 4</gadget>
<output>24</output>

<result>24</result>