If the sum of the two sides of an isosceles right triangle is 16 cm, what is its area in square centimeters?
一个等腰直角三角形的两条直角边长度之和是16厘米，它的面积是多少平方厘米．
<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<result>32</result>