A triangular vegetable field is 50 meters high and the bottom is 1/2. What is the area of the vegetable field in square meters?
一个三角形菜地，高是50米，是底的(1/2)，这块菜地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">50 / (1/2)</gadget>
<output>100</output>

<gadget id="calculator">50 / 2</gadget>
<output>25</output>

<gadget id="calculator">100 * 25</gadget>
<output>2_500</output>

<result>2_500</result>