It is known that the longest side of an isosceles right triangle is 16 cm. What is the area of this isosceles right triangle?
已知，一个等腰直角三角形，最长的边是16厘米，这个等腰直角三角形的面积是多少平方厘米？
<gadget id="calculator">16 / 4</gadget>
<output>4</output>

<gadget id="calculator">16 * 4</gadget>
<output>64</output>

<result>64</result>