The area of a parallelogram is 25.6 square centimeters, what is the surface area of a triangle with the same base and height as it?
一个平行四边形的面积是25.6平方厘米，与它等底等高的三角形的面面积是多少平方厘米．
<gadget id="calculator">25.6 / 2</gadget>
<output>12.8</output>

<result>12.8</result>