A triangular glass plate has a base of 6 decimeters and the corresponding height is half of the base. What is the area of this glass plate in square decimeters?
一块三角形的玻璃板，底6分米，对应的高是底的一半，这块玻璃板的面积是多少平方分米．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">6 * (3/2)</gadget>
<output>9</output>

<result>9</result>