The base of a triangle is 5cm, the height is 2cm, what is the area of a parallelogram with the same base and height as this triangle in cm**2.
一个三角形的底是5cm，高是2cm，和这个三角形等底等高的平行四边形的面积是多少cm**2．
<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<result>10</result>