What is the area of an isosceles right triangle whose base and height are both 10 cm?
底和高都是10厘米的等腰直角三角形，面积为多少平方厘米．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

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

<result>50</result>