The base of a triangle is 4.5 meters and the height is 2.4 meters. What is the area of the parallelogram with the same base and height in square meters?
一个三角形的底是4.5米，高是2.4米，与它等底等高的平行四边形面积是多少平方米．
<gadget id="calculator">2.4 / 2</gadget>
<output>1.2</output>

<gadget id="calculator">4.5 * 1.2</gadget>
<output>5.4</output>

<gadget id="calculator">5.4 * 2</gadget>
<output>10.8</output>

<result>10.8</result>