A triangle and a parallelogram have the same base and height. If the area of the parallelogram is 72 square decimeters, what is the area of the sides of the triangle in square meters?
一个三角形和一个平行四边形等底等高，如果平行四边形的面积是72平方分米，那么这个三角形边形的面积是多少平方米．
<gadget id="calculator">72 / 2</gadget>
<output>36</output>

<result>36</result>