If the area of a triangle is 35 square decimeters, what is the area of a parallelogram with the same base and height as it?
一个三角形的面积是35平方分米，与它等底等高的平行四边形的面积是多少平方分米．
<gadget id="calculator">35 * 2</gadget>
<output>70</output>

<result>70</result>