The lengths of the three sides of a right triangle are 8 cm, 5 cm, and 6 cm. What is the area of this right triangle in square centimetres.
一个直角三角形的三条边长分别是8厘米、5厘米、6厘米．这个直角三角形的面积是多少平方厘米．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">5 * 3</gadget>
<output>15</output>

<result>15</result>