If the base of a triangle is 6.5 cm and the height is 4 cm, what is the area of a parallelogram with the same base and height in square centimeters?
一个三角形的底是6.5厘米，高是4厘米，与它等底等高的平行四边形的面积是多少平方厘米．
<gadget id="calculator">4 / 2</gadget>
<output>2</output>

<gadget id="calculator">6.5 * 2</gadget>
<output>13</output>

<gadget id="calculator">13 * 2</gadget>
<output>26</output>

<result>26</result>