The three sides of a right triangle are 20 cm, 16 cm, and 12 cm respectively. What is its area in square centimeters?
一个直角三角形的三条边分别是20厘米、16厘米、12厘米，它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>