If a parallelogram has a base of 0.6 meters and a height of 0.5 meters, what is the area in square meters of a triangle with the same base and height?
一个平行四边形，它的底是0.6米，高是0.5米，与它等底等高的三角形的面积是多少平方米．
<gadget id="calculator">0.5 / 2</gadget>
<output>0.25</output>

<gadget id="calculator">0.6 * 0.25</gadget>
<output>0.15</output>

<result>0.15</result>