If the base of a parallelogram is 4 meters and the height is 1 meter, what is the area in square meters of the triangle with the same base and height?
一个平行四边形底是4米，高是1米，与它等底等高的三角形的面积是多少平方米．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">4 * (1/2)</gadget>
<output>2</output>

<result>2</result>