A triangle and a parallelogram have the same area and height, and the base of the triangle is 6 cm. What is the base of the parallelogram in cm?
一个三角形与一个平行四边形的面积相等，高也相等，已知三角形的底是6厘米，则平行四边形的底是多少厘米．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * 6</gadget>
<output>3</output>

<result>3</result>