triangle and a parallelogram have the same base and height. If the area of the parallelogram is 128 square meters, what is the area of the triangle?
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128平方米，那么三角形的面积是多少．
<gadget id="calculator">128 / 2</gadget>
<output>64</output>

<result>64</result>