The side lengths of a right triangle are 10cm, 6cm, 8cm, what is the area in cm**2.
一个直角三角形的边长分别是10cm、6cm、8cm，面积是多少cm**2．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">10 * 3</gadget>
<output>30</output>

<result>30</result>