A parallelogram with four equal sides is surrounded by 8-meter-long iron wire, and its height is 1 meter. What is its area in square meters?
用8米长的铁丝围成-个四条边相等的平行四边形，高是1米，它的面积是多少平方米？
<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<gadget id="calculator">2 * 1</gadget>
<output>2</output>

<result>2</result>