The area of a triangle is equal to the area of a parallelogram, and the height is also equal. If the base of the triangle is 8 meters, what is the base of the parallelogram in meters?
一个三角形的面积和一个平行四边形面积相等，高也相等，如果三角形的底是8米，平行四边形的底是多少米．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<result>4</result>