A triangular vegetable field has a base of 15 meters and a height of 8 meters. What is its area in square meters?
一个三角形菜地，底是15米，高是8米，它的面积是多少平方米．
<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">15 * 4</gadget>
<output>60</output>

<result>60</result>