If the area of a parallelogram is 56 square centimeters, what is the area of a triangle with the same base and height as it?
平行四边形的面积是56平方厘米，与它等底等高的三角形的面积是多少平方厘米．
<gadget id="calculator">56 / 2</gadget>
<output>28</output>

<result>28</result>