If the right angle side of an isosceles right triangle is 10 cm, what is its area in square centimeters?
一个等腰直角三角形的直角边是10厘米，它的面积是多少平方厘米．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">10 * 5</gadget>
<output>50</output>

<result>50</result>