The three sides of a right triangle are 12 cm, 16 cm and 20 cm long respectively, what is the area of the triangle in square centimeters?
一个直角三角形的三条边分别长12厘米，16厘米和20厘米，这个三角形的面积是多少平方厘米．
<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">16 * 6</gadget>
<output>96</output>

<result>96</result>