The length of the side of an isosceles right triangle is 6 cm, what is the area of the triangle in square centimeters?
一个等腰直角三角形的腰长6厘米，这个三角形的面积是多少平方厘米．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<result>18</result>