The lengths of the three sides of a right triangle are 0.6 meters, 0.8 meters and 1 meter respectively. What is the area of the triangle in square meters?
直角三角形的三条边的长分别是0.6米、0.8米和1米，这个三角形的面积是多少平方米．
<gadget id="calculator">0.8 / 2</gadget>
<output>0.4</output>

<gadget id="calculator">0.6 * 0.4</gadget>
<output>0.24</output>

<result>0.24</result>